Soft tissue anat from pg52-73
Quiz yourself by thinking what should be in
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| The platysma muscle rises from the _____ and passes, in some cases, over the manidble of the cheek | neck
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| The platysma muscle is supplied by the _______branch of the ________ nerve | cervical branch of the facial nerve
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| The sternohyoid muscle originates from the _______ ______ of the sterum and inserts on the body of the ______ | jugular notch of the sternum and the body of the hyoid
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| This muscle is directly medial to the omohyoid muscle (superior belly) | sternohyoid muscle
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| The sternohyoid is the most superficial of the __________ muscles | infrahyoid muscles
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| the infrahyoid muscles are innervated by the ________ _____ of the ______ ______ | inferior root of the ansa cervicalis (c2,c3)
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| The sternothyroid muscle is deep to the _________ m and it also originates at the jugular notch and inserts at the oblique line of the ________ _________ | sternohyoid; thyroid cartliage
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| This muscle is a continuation of the sternothyroid m. and it originates at the oblique line of the thyroid cartliage and inserts at the greater horn of the _______ ______ | thyrohyoid muscle; hyoid bone
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| two muscles are connected through the central tendon, what are they | the inferior and superior bellies of the omohyoid m.
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| The inferior belly of the omohyoid continues posteriorly to attach to the superior portion of the _________ | scapula, near the scapular notch
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| This branch of the facial nerve courses under the mandible and ascends to supply the muscles around the ________ of the _______ | mandibular; corner of the mouth
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| The sensory nerves of the cervical plexus originate from the spinal segments of ____ through ___ | C2 - C4
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| The sensory nerves of the cervical plexus pass through the _______fascia and the investing layer of the ______ fascia at the midpoint of the sternocleidomastoid muscle | prevertebral; cervical
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| The lesser occipital nerve usually only originates from | C2
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| the lesser occipital nerve travels posterior to the ____________ m and innervates the skin posterior to the ________ ___ | SCM ; external ear
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| The greater auricular nerve contains fibers from the ventral rami of _____ and _____ | c2 and c3
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| This nerve crosses the SCM to innervate the skin covering the angle of the mandible and anterior to the pinna of the external ear | greater auricular nerve
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| The transverse cervical nerve is formed by c2 and c3 and it innervates the skin of the anterior ____ | c2-c3; neck
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| the supraclavicular nerve comes from _____ and ____ and breaks up into ______ _______ ______ branches to supple the skin over the shoulder and anterior thorax | c3-c4; anterior, middle and posterior
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| a number of nerves leave the cervical plexus to join the spinal accesory nerve. These provide (afferent or efferent) information from the receptors in the trap and SCM | afferent
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| This large vein runs superficial to the SCM | external jugular vein
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| Most commonly the external jugular recieves blood from this vein | retromandibular vein (with blood from facial and maxillary veins)
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| Where does the external jugular drain into | subclavian
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| This nerve lies directly on top of the carotid sheath | ansa cervicalis
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| The ansa cervicalis is the (sensory or motor) portion of the cervical plexus and supplies these muscles | motor; infrahyoid
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| The carotid sheath (thick connective tissue)contains what vessels | common carotid, internal jugular vein
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| name how the internal jugular, common carotid and vagus nerve lie in the carotid sheath (medial to lateral) | common carotid, vagus, internal jugular vein
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| This artery splits off of the common carotid to supply the brain | internal carotid
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| the external carotid supplies what | the superficial structures in the head and neck
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| This is the first branch of the external carotid and it supplies the thyroid | superior thyroid artery
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| This branch of the vagus nerve accompanies the superior thyroid artery | superior laryngeal nerve
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| This artery typically branches off of ex. carotid art. and supplies the pharyngeal muscles | ascending phayngeal a.
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| The sinus nerve is a (sensory or motor) branch of CN9 and CN10 and it carries information from the blood pressure receptors in the _________sinus and chemoreceptors in the _________body | sensory; carotid ;carotid
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| The lingual artery branches off of the _______ ______a. and it supplies what | ext. carotid; tongue
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| The facial artery branches off of _______ ______ a and it supplies what | ext. carotid; facial structures
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| The occipital a. branches off of ______ _______ an it supples the muscle and skin of what area | ext. carotid; posterior regoin of the skull
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| The anterior scalene attaches between the 1st rib and the transverse processes of what vertebrae | C3-C6
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| What nerve lies anterior to the anterior scalene m. | phrenic n
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| The internal jugular vein meets with the subclavian on the anterior surface of this muscle | anterior scalene
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| The roots of the brachial plexus and the subclavian artery are between what two structures (near the 1st rib) | posterior to the anterior scalene, anterior to the middle scalene
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| The posterior scalene is similar to the middle scalene except that it attaches to the ____ ____ | 2nd rib (middle attaches to the 1st rib)
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| The middle scalene attaches to what cervcial transverse processes | C2-c7
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| The thyroid gland exists (superior or inferior) to the larynx | inferior
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| this connects the two lobes of the thyroid gland | isthmus
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| name the artery and vein that supply the superior portion of the thyroid | superior thyroid artery and vein
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| the inferior thyroid artery come off what artery and does the thryroid vein travel with the artery | thyrocervical trunk, no, it lies midline (off of the brachiocephalic trunk)
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| the larynx is located anterior or posterior to the esophagus | anterior
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| This is the opening of the larynx in which air, from the pharynx, comes through to enter the trachea | aditus
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| the vestibule (of the larynx) exists superior the _____ _____ _____ | true vocal folds
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| the vestibular,false, vocal folds lie superior or inferior to the true vocal folds | superior
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| This is the small space between the vestibular and false vocal folds | ventricle
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| Air will enter the opening between the vocal folds called the | rima glottidis
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| This is the only muscle that exists externally on the larynx | cricothryroid m
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| The criocothyroid muscle attaches to the cricoid and thyroid cartilidges on the (medial or lateral) aspect of the larynx | lateral
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| Does the cricothyroid muscle raise or lower pitch | raise (by pulling on the thyroid cartilage
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| The only muscle to be supplied by the external branch of the superior laryngeal nerve is | the cricothyroid m.
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| The cricothryoid joint is a ______ joint | synovial
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| The cricothryoid cartilage/membrane helps prevent excessive movement of this | thyroid cartliage
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| This is a branch of the superior thryoid artery that supplies the larynx | superior laryngeal artery
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| the superior laryngeal artery and this branch of the vagus nerve pass through the thyroihyoid membrane to supply the mucosa of the larynx | internal branch of the superior laryngeal nerve
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| the internal branch of the superior laryngeal nerve gives sensory or motor fibers to the mucosa of the larynx superior to the true vocal cords | sensory
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| This nerve courses between the trachea and the esophagus and terminates in the larynx | recurrent laryngeal nerve (branch of the vagus)
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| Name the vessels that the recurrent laryngeal nerve courses under on the right and left side | left: aorta; right : subclavian
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| The recurrent laryngeal n. supplies the straited or smooth muscle of the esophagus and the straited or smooth muscle of the posterior trachea | straited; smooth
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| the tracheal glands receive sympathetic or parasympathic innervation from the recurrent laryngeal nerve | parasym
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| The recurrent laryngeal n ends as this nerve | inferior laryngeal n.
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| the inferior laryngeal n. gives motor or sensory fibers to some intrinsic laryngeal muscles and motor or sensory fibers tot he layngeal muscosa inferior to the vocal folds | motor; sensory
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| This cartliage makes up most of the anterior part of the larynx | thyroid cartliage
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| What is the laryngeal prominence | an anterior sagittal keel of the thyroid cartliage
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| This cartliage of the larynx is ring shaped with and enlarge flattened lamina posteriorly | criocoid cartliage
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| this membran connects the thyroid cartliage with the hyoid bone | thryohyoid membrane
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| What is the best way to enter the airway during an emergency situation and why | the cricothyroid membrane b/c there are no blood vessels or nerves around to damage it and it is a soft spot and b/c there is no cartilage there so it is easy to penetrate. it does however impinge on the vocal cords so it is not a replacement.
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| What are the cartliages sitting superiorly, on the cricoid cartliages | arytenoid cartliages
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| This is the most superior portion of the larynx and makes up the superior boundary of the aditus | epiglotis (which contains epiglotic cartliage)
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| the superior portion of the larynx contains oblique and transvers fibers making up the _______m | arytenoid m.
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| The arytenoid m. acts to close off the ______ __________ and it runs between the two arytenoid cartliages | rima glottidis
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| This "fold" passes from the arytenoid cartliage to the epiglottis | aryepiglottic fold
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| This muscle originates from the cricoid lamina, inserts on the muscular porcess of the arytenoid cartilage and acts as an abductor of the vocal folds | posterior criocoarytenoid muscle
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| What is the only intrinsic muscle of the larynx that abducts the vocal folds and therefor opens the rima glottidis | posterior criocoarytenoid muscle
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| lateral cricoarytenoid muscle acts to (tense or relax) and (abduct or adduct) the vocal folds to close the glottis | tense, adduct
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| The thyroarytenoid muscle (tenses or relaxes) and (abducts or adducts) the vocal folds to close the glottis | relax (shorten the vocal cord), adducts
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| This muscle acts to move the epiglottis anteriorly, therefore opening the aditus | (blank)
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| of the larynx | thyroepiglottic muscle
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| The tracheal rings are "c" in shape and the muscle that completes the gap in between is called the _________ muscle (and what kind of muscle is it made of | trachealis; smooth
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| The piriform recess is located in the ? | laryngopharynx
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| This large muscle is located on the lateral surface of the larynx and it attaches to the oblique line of the thyroid cartliage | inferior pharyngeal constrictor muscle
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| this muscle is part of the inferior pharyngeal constrictor muscle that attach to the sides of the criocoid cartliage | criocopharyngeal muscle
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| the criocopharyngeal muscle serves as a _______ between the laryngeal pharynx and the esophagus | spincter muscle
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| The middle pharyngeal constrictor muscle attaches to the greater and lesser _______ of the _______ and to the distal end of the stylohyoid _______ | horns of the hyoid bone; ligament
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| The inferior and middle laryngeal constrictor muscles are supplied by | the pharyngeal plexus
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| this structure is immediately inferior to the cricopharyngeus m. of the pharynx | esophagus
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| This fascia lies on the posterior surface of the esophagus and pharynx | buccopharyngeal fascia
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| between the buccopharyngeal fascia and the prevertebral fascia lies the__________ _______ | retropharyngeal space
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| The prevertebral fascia covers the _________ muscles | prevertebral
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| the longus colli m. is an (anterior or posterior) muscle of the vertebra | anterior (hence prevertebral)
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| This prevertebral muscle attaches to transverse cervical processes and runs superiomedially to attach to the midline of the vertebra | longus colli muscle
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| The highest attachement for the longus colli muscle is: | the anterior tubercle of the atlas
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| This prevertebral muscle originates at the transverse cervical processes and attaches at the skull base, superior to the foramen magnum | longus capitis
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| the longus capitus and longus colli muscles are innervated by | ventral rami of cervical spinal nerves
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| This muscle arises from the anterior ______ of the atlas and attaches to the skull base | rectus capitis anterior m.
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| theis muscle arises fromthe transverse process of the atlas and attaches to the skull base | rectus capitis lateralis m.
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| the submandibular gland is a _______ gland and is located inferior to the ______ | salivary, mandible
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| this muscle attaches to the midline of the mandible and to the intermediate tendon | anterior belly of the digastric
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| the posterior belly of the digastric attaches to the _______ ______ (of the temporal bone) and the inferior border of the ________ | mastoid notch; mandible
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| The intermediate tendon is harnessed to the greater horn of the hyoid by a _______ ______ | fibrous loop
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| Name the innervations of the posterior and anterior belly of the digastric | posterior (facial), anterior (mandibular branch of trigeminal)
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| This muscle attaches at the mylohyoid line of the mandible and inserts on the body of the hyoid bone AND is deep to the anterior belly of the digastric | mylohyoid muscle
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| B/c of the angle of the muscle in this muscle, the muscle attaches to a midline raphe which begins at the mandibular symphysis to the hyoid bone | mylohyoid muscle
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| The geniohyoid is directly inferior to the mylohyoid muscle, name its insertions and origins | The geniohyoid is directly inferior to the mylohyoid muscle, name its insertions and origins
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| The lingual artery passes deep to this muscle and originates at the hyoid bone, inserts at the body of the tongue | hyoglossus m
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| name the insertion and origin for styloglossus muscle | origin: styloid process, insertion: body of the tongue
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| Deep to the geniohyoid muscle is this muscle which begins at the superior spine of the mandibular symphysis to insert on the _______ | genioglossus; tongue
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| The sublingual gland sits btween the mandible and the ________ m | genioglossus m.
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| The attachment of this muscle is split by the central tendon of the digastric muscle | stylohyoid m.
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| This vein drains into the external and internal jugular and pierces through the parotid gland | retromandibular gland
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| The external carotid artery divides into two branches within the parotid gland, what are they | superficial temporal artery and maxillary artery
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| the masseter muscle runs from the inferior part of the _________ ______ to the lateral aspect of the _________ | zygomatic arch; mandible
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| The masseter muscle is innervated by: | masseteric muscle (branch of mandibular n.)
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| the masseteric _______ and ________ lie in the space deep to the masseter m. | artery and nerve
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| The temporalis muscle is covered by _________fascia | temporalis
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| The temporalis muscle orginiates at the ________ part of the _______ and inserts at the ______ proces and the anterior margin of the mandibular ramus | lateral part of the skull; coronoid
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| The temporalis muscle is innervated by: | masseter nerve
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| the temporalis muscle provides sheering power to the (anterior or posterior) teeth | anterior
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| This nerve and artery are located in the infratemporal fossa and enter the mandibular foramen | inferior alveolar nerve and artery
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| The inferior alveolar n. and a. end as the: | mental artery and n.
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| This nerve branches off o the inferior alvelor nerve at the mandibular formen | mylohyoid n.
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| the lingual nerve courses to the superior or inferior tongue | inferior
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| the laterl pterygoid m. arise by two heads (name them) and insert at the condylar porcess of the mandible and to articular disc of the TMJ | superior head: attached to greater wing of spheniod; inferior head: attaching to the lateral surface of the lateral pterygoid plate
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| the lateral pterygoid m. is designed primarily to pull the mandible and articular disc anterior or posterior | anterior
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| if the lateral pterygoid is contracted bilaterally, what happens tot he attachment to the disc and mandible | protrusion and depression
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| if the lateral pterygoid is contracted unilaterally, what happens to the mandible | the mandible deviates to the opposite side such as in grinding of the molars
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| what is the lateryl pterygoid innervated by | mandibular nerve (v3)
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| this nerve carries taste fiber for the anter. 2/3 of the tongue and secretomotor axons for the submandibular ganglion | chorda tympani
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| the chorda tympani extends through the __________ fissure which allows it to leave the cranium | petrotympanic
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| The middle meningeal artery (a branch of ________ a) passes deep to the lateral pterygoid m. and through the ________ _________ to enter the cranium | maxillary a., foramen spinosum
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| This artery, being one of the last arteries to branch off of the maxillary, supplies some of the maxilliary teeth | posterior superior alveolar artery
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| These branches of the maxillary supply the face and the hard palate respectively | infraorbital artery; greater palantine artery
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| Name the branches of the trigeminal nerve that contain both motor and sensory components | mandibular nerve (v3)
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| The otic ganglion exists medially to which trigeminal nerve and it is directly superior or inferior to the formamen ovale | mandibular nerve; inferior
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| the auriculartemporal nerve ( a branch of mandibular) encircles the ______ _________ a and travels toward the external acoustic meatus. It then courses with the _________ ________ a and supplies what | middle meningeal a,;superficial temporal a.; skin on the side of the head
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| the buccal nerve (of CN5) supplies what | the buccal nerve (of CN5) supplies what
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| The mental nerve (a branch of inferior alvelor n) supplies what | the skin over the chin
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| this nerve of CN5 supplies the mucosa of the naterior 2/3 of tounge, floor of mouth, and adjacent gingiva | lingual n.
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| the articular disc of the TMJ allows which two movements to occur simutaneously | open/close and protract/retract
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| The TMJ is divided into and upper and lower portion via a | disc and ligament
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| The upper portion of the TMJ (between the disc and temporal bone) is responsible for what movement | anterior/posterior sliding of the jaw.
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| The lower portion of the TMJ (b/n the disc and the condylar process is responsible for what movement | abductions and adduction
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| The medial pterygoid muscle has two attachements, one to the medial surface of the _________ ________ plate and another to the tubercle of the _________ | lateral pterygoid plate;maxilla
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| the medial pterygoid is innervated by what and allows for what movement | mandibular nerve;grinding of the molars
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| the pterygomandibular raphe is an attachment for what two muscles and itself is attached to the pterygoid _________ | buccinator and superior pharyngeal constrictor m.; hammulus
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| This is the fascia that covers the buccinator and the superior pharyngeal constrictor m. | buccopharyngeal fascia
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| the superior pharyngeal constrictor m. attaches throught a median raphe but it's most superior fibers attach on the basiooccipital bone at the ________ _______ | pharyngeal tubercle
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| Name the innervation of the stylohyoid m. | CN7
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| Name the innervation of the styloglossus m | CN12
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| The stylopharyngeal m. attaches at the styloid and in b/n what two muscle and, lastly, what is it innervated by | the superior and middle pharyngeal constrictor m.; cn9
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| name the lig. running from the styloid to the hyoid | stylohyoid ligament
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| this nerve emerges from the jugular foramen and it runs posterior to the stylopharynegeus | glossopharyngeal
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| this plexus provides sensory (from CN9) to the mucosa of the pharynx and it receives fibers from the vagus which supply some motor to the pharynx | pharyngeal plexus
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| A small branch of this nerve runs to the carotid sinus | CN9
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| CN 9 provides sensory to what structures | posterior 1/3 tongue, tonsils, soft palate and palantine arches.
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| The sensory leg of the gag reflex is enabled through which nerve | glossopharyngeal
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| CN 9 has two ganglia associated with it, what are they | inferior and superior ganglia of CN 9
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| The vagus has two ganglia associated with it as it leaves the jugular foramen, name them | superior, jugular ganglion and inferior nodose ganglion
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| The fibers from CN 9 and 10 that go to the pharyngeal plexus go between what two vessels | int. and ext carotid a. (to enter the pharyngeal wall)
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| The vagus gives motor fibers to the muscles of the pharynx (except what muscle?) and the muscles of the soft palate (except what muscle) | stylopharyngeus and tensor palati
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| the superior and recurrent laryngeal are branches of what nerve | vagus
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| The sympathetic trunk is superficial or deep to the vagus and carotid sheath | deep
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| This ganglion of the sympathetic trunk lies at the CV2-3 region and provides postganglionic sympathetic fibers to structures in the head | superior cervical ganglion
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| Branches of the sympathetic that lie on the internal and external carotids are labeled as the | carotid plexus
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| This ganglion sits at the level of the cricoid and provides postganglionic sympathetics to the thyroid | middle cervical ganglion
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| This ganglion lies at TV1 and may be split into two ganglion | cervicothoracic ganglion
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| There are two parts to the tongue, the anterior 2/3 (oral portion) which lies in the ______ _______ and the posterior 1/3 (pharyngeal portion) which becomes part of the _________ ________ | oral cavity and anterior pharynx
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| This part of the tongue has no papillae but is covered with encapsulated follicles, the lingual tonsil | pharyngeal tongue
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| If you lift the tongue to view the underside, you will see this median fold | frendulum linguae
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| This opening lies at the base of the frendulum linguae | opening of the submandibular duct
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| The oral cavity is bounded superiorly by these two things | h hard and soft palate
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| The oral cavity is bounded inferiorly by this | palatoglossal arch
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| What is the tooth formula for incisors, canines, premolars, molars | 2,1,2,3
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| these are closely associated with the teeth and are also called gums | gingiva
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| how do the fibers run in the intrinsic tongue musculature | vertically, longitudinally and transversely
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| name some extrinsic muscles of the tongue | genioglossus, mylohyoid and geniohyoid
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| What nerve and artery run through the greater palatine foramen | greater palatine a. and n.
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| The vestibule is the in the anterior or posterior part of the nasal cavity | anterior
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| Most of the vestibule is lined with respiratory epithelium or epidermal epithelium | epidermal epithelium (containing vibrissae)
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| Name the 3 separate portions of the nasal septum | perpendicular bone of the ethmoid, vomer, and septal cartilage
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| These are projections from the lateral wall of the nose that are posterior to the atrium | superior, middle and inferior choncha
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| These are the spaces that are lateral and inferior to the chonchae | sup, mid, inf. meatus
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| The spheno-ethmodial recess lies superior or inferior and anterior or posterior to the superior meatus lies the spheno-ethmodial recess | superior and posterior
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| The spheno-ethmoidal recess drains into the sphenoidal air sinus, true or false | false, the sphenoidal sinus drains into the recess
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| The ________ meatus communicates with the posterior ethmoidal air cells | superior
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| The hiatus semilunaris narrows anteriorly, forming this tube which receives drainage from the frontal sinus | infundibulum
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| The orfice for the __________ ________ lies within the hiatus semilunaris | maxillary sinus
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| This structure plays a major role in sinus drainage and the structures realated to it play a part in sinus blockage | hiatus semilunaris
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| The inferior meatus is the site for the orfice of the ________ ______ | lacrimal duct
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| Which two ethmoidal air cells drain into the middle meatus | anterior and middle ethmodial air cells
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| The inferior meatus lies laterally or medially to the maxillary air sinuses | medial
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| Since the roof of the maxillary sinus is the floor of the orbit, what structures are in close relation to the sinus | infraorbital nerve and vessels
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| The roots of the teeth project into the maxillary sinus which are only separated by this thin layer of bone aka? | mucoperiosteum
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| If there is an infection of a tooth, the infection may spread where? | to the maxilliary sinus, although it can be irrigated via the middle meatus.
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| The pterygopalatine ganglion contains postganglionic sympathetic or parasympathetic fibers | parasympathetic
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| The lateral wall of the nasal cavity has two major innervations, what are they | anterior ethmoidal and posteriorlateral nasal branches
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| The anterior ethmoidal is a branch of the __________ nerve | opthalmic nerve (v1)
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| the posteriorlateral nasal branches are a branch of the _________ nerve | maxillary nerve (v2)
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| The septum of the nose is innervated by the anterior ethmoidal nerve and ______________ n. | nasopalatine nerve (branch of maxillary v2)
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| The anterior portion of the nasal cavity is supplied by ________ branches of the opthlamic artery | ethmoidal
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| the posterior portion of the nasal cavity is supplies by the ________ artery, a branch of the maxillary artery | sphenopalatine artery
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| The inferior portion of the nasal cavity is supplied by what | facial artery
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| This is an area on the nasal septum where the branches of opthalmic, maxillary and facial arteries anastamose (and is packed in serious cases of epistaxis (nose bleed) | little's area
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| This is the area of epithelium where the neural proceses from the olfactory receptor cells lie | olfactory epithelium, cribiform plate
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| The nasopharynx becgins posterior to the nasal conchae, at the _______ | choanae
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| the orfice for the ___________ ______ lies posterior to the conchae | auditory tube
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| This is the robust cartilaginous ridge that surrounds the orfice for the auditory tube | torus tubarius
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| The salpingopharyngeal fold is the posterior part of the torus tubarius and contains what muscle | salpingopharyngeus m
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| The pharyngeal tonsil is on the roof or floor of the nasopharynx | roof
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| There are two arches in the oropharynx, palatoglossal and palatopharyngeal, which is more anterior | palatoglossal
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| What exists b/n the palatoglossal and palatopharyngeal arches | palantine tonsil
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| The auditory tube has a ______ portion which makes up 1/3 of it's length | bony
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| The tensor palati m. attaches to the sphenoid and this cartliganous structure | auditory tube
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| The tensor palati m., after its attachment to the auditory tube, wraps around this structure to form an aponeurosis and attach to the same muscle of the opposite side | pterygoid hamulus
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| Name the function and the innervation of tensor palati m | tense the soft palate, V3
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| Levator palati m. attaches to the temporal bone and ______ ______ and serves to pull the soft palate superiorly to open or close the nasopharynx | auditory tube and close
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| The _______________ muscle acts to elevate the pharynx when swallowing and is attached to the auditory tube | salpingopharyngeus m.
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| Name the innervation for the levator palati and salpingopharyngeus m. | pharyngeal plexus (vagus)
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| This is a muscle that attaches to the soft palate laterally and decends to the lateral aspect of the tongue | palatoglossus m.
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| The palatopharyngeus m. decends _______________ from the soft palate to blend wit the other muscle fibers into the pharyngeal wall | posterolaterally
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| What muscles of the soft palate act to elevate the pharynx during swallowing | palatoglossus and palatopharyngeus (salpingopharyngeus attached to the auditory tube but has the same job)
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| This is the muscle of the uvula that helps close off the nasopharynx | musculus uvulae
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| The palatopharyngeus, palatoglossus, musculus uvulae and the superior pharyngeal constrictor muscles are innervated by | pharyngeal plexus
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| The ________cavity is enclosed by the petrous temporal bone and contains the middle ear bones | tympanic
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| What is the first bone, attached to the tympanic membrane | malleus
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| What is the bone that lies b/n the malleus and the stapes | incus
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| The stapes transmits sound through its flat plate which is in contact with the ? | cochlea
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| What are the two muscle attached to the malleus and stapes that help dampen large sounds | tensor tympani m and stapedius m.
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| The tensory tympani m. is supplied by the _______ n and is attached to the distal malleus | mandibular n
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| the stapedeus m. is supplied by the _______ n. and is attached to the proximal stapes | facial
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| This nerve enters the internal acoustic meatus then turns inferiorly (medially to the middle ear bones) to exit the skull via the stylomastoid foramen | facial nerve
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| The semicircular canals are responsible for sensing acceleration and equilibrium or position | acceleration and equilibrium
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| Posterior to the tympanic cavity is the mastoid wall of the cavity through which the aditus opens into the _______ of the mastoid air cells in the mastoid process | antrum
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| Since the anterior portion of the tongue is derived from the 1st arch, tactile sensation will be provided by | mandibular nerve (v3)
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| the posterior 1/3 of the tongue is dervied fromteh 3rd arch, so its general sensory is from | glossopharyngeal n.
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| Taste in the tongue is divided by 2 nerves, what are they | anterior is chorda tympani and posterior 1/3 is CN9
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| The reason the hypoglossal nerve, motor to the tongue, has such an odd course is b/c? | the tongue is derived from 2 occipital somites of the head in which the mesenchyme must migrate from the dorsal to the ventral part of the embryo (and the nerve is drug along with it)
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