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