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head & face anatomy

Structures of the Head and face

Bones of skull divided into what two groups Neurocranium and Facial Skeleton
Roof of skull (calvaria) formed by what bones frontal bone, parietal bones, and occipital bone
(flat) part of the frontal bone forming the skeleton of the forehead. squamous
the angular boundary between the squamous and orbital parts of the frontal bone Supraorbital margin
Floor of cranial cavity formed in part by occipital, sphenoid, frontal, ethmoid, and temporal
passageway to auditory complex found in the temporal bone External acoustic meatus
contains complex inner ear Petrous part of temporal bone
lateral expanse of temporal bone Temporal fossa
bony projection for attachment of muscles found in the temporal bone Styloid process
where the temporal bone meets the zygomatic bone Zygomatic process
Occipital condyles articulate with C1
passage way for spinal cord located in the occipital bone Foramen magnum
locations for muscular attachments in the occipital bone external occipital protuberance and the superior and inferior nucal line
unpaired bone that forms part of the medial wall of each orbit and therefore, part of the lateral walls of the nose Ethmoid
the ethmoid bone forms roof of nasal cavities and transmits what cranial nerves information Cranial nerve 1
Ethmoid can be seen in the nasal aperture as the perpendicular plate and middle conchae.
what nasal conchae are a part of the ethmoid bone the superior conchae and the middle conchae
On superior surface of cribiform plate there is a vertical boney projection known as the Crista Galli
It is an irregular unpaired bone that consists of a body and three pairs of processes: greater wings, lesser wings, and pterygoid processes. sphenoid bone
where does the pituitary gland sit turk's saddle
Pituitary tumors manifest with visual changes often as first sign because of proximity to the optic chiasm
Paranasal sinuses lie in the frontal, sphenoid, and the Maxillary bones
what bone forms the prominence of the cheek. zygomatic bones
Eachzygomatic bone has a projecting process that unites with a similar process of the temporal bone to form the zygomatic arch.
what bones form the bridge of the nose The nasal bones
toothbearing bones of upper jaw Maxillae
the maxilla and the palatine bone forms what structure that separates the nasal and the oral cavity hard palate
Lacrimal bones are located here the medial wall of the orbit
rami of the mandible articulate with what bone the temporal bone
the chin is most associated with this structure Mental protuberance
what bones make up the rim of the orbital socket frontal, zygomatic, and maxillary bones
what bones make up the interior portion of the orbital socket lacrimal, ethmoid, palatine, and shenoid bones
the nasal septum is made up by the inferior and posterior vomer bone and what part of the ethmoid bone perpendicular plate
the roof of the nasal cavity is made up of what structure of the ethmoid bone cribiform plate
the function of the superior, middle and the inferior conchae is to to clean and warm air
fibrous joints in the scull in which the surfaces of the bones entering the joint are united by fibrous connective tissue. Sutures
suture located in the midline, running in an anteroposterior direction between the parietal bones. Sagittal suture
suture that marks the juncture between the parietal bones and the frontal bone. Coronal suture
suture that is apparent laterally between the temporal and parietal bones. Squamous suture
suture that is posterior and lies between the parietal and occipital bones. Lambdoid
In the newborn infant, bones of the cranium, instead of being tightly joined by sutures, are united by membranes that are gradually converted into bone. these are called fontanels
this fontanel is located where the originally paired frontal bones and the two parietal bones approach each other in the midline, and is easily palpable. anterior fontanel
this fontanel is between the two parietal bones and the occipital bone, also palpable, but for a much shorter period of time because it closes earlier than the anterior Posterior fontanel
two fontanels on each lateral aspect of the skull at the juncture of the parietal, frontal, sphenoid and temporal bones anterolateral (sphenoidal) fontanel
fontanel that is located where the temporal, occipital and parietal bones meet Posterolateral (mastoid) fontanel
Facial muscles are different from other muscles because instead of moving one bone upon another, they move and are attached to primarily what skin
mimetic muscles is another name for what facial muscles
what is the name of the muscle group in the face that consists of only one muscle platysma
the actions of the depressor anguli oris and the depressor labii inferioris is to which pull the corners of the mouth and the lower lip downward
Risorius and two zygomatic muscles do what actions pull the corners of the mouth laterally, and laterally and upward.
Levator labii superioris and levator anguli oris do what actions elevate the upper lip and corner of the mouth
to pucker lips you use what muscle Orbicularis oris
Buccinator muscle forms the muscular part of the face cheek
By its contraction this muscle prevents food from collecting in the space between the cheeks and the teeth and is used in such actions as swallowing and blowing wind instruments buccinator
Muscles connected with the nose are primarily compressors, depressors or dilators
a broad muscle that surrounds the orbit and extends into both upper and lower lids is responsible for closing the lids. Orbicularis oculi
The upper lid is raised by a muscle within the orbit levator palpebrae superioris
what muscle is responsible for wrinkling the forehead frontalis of the occipitofrontalis
that muscle produces small vertical folds between the eyebrows that are associated with a “worried look” Corrugator supercilii
These muscles are rudimentary in humans and are not typically subject to voluntary control in most individuals muscles connected with the ears
the actions of the platysma muscle draws the corners of the mouth and lower lip downward and laterally, as in an expression of horror
The entire group of facial muscles, including the platysma, receives innervation from what nerve Cranial nerve 7
after CN 7 round the posterior aspect of the ramus of the mandible it passes through this structure the parotid gland
what are the divisons of muscles that are responsible for movements of the eyeball rectus and oblique muscles
what muscle directs the pupil downward and laterally, superior oblique
what is the action of the inferior oblique muscle directs pupil upward and laterally
All of these muscles, with the exception one arise from or close to a tendinous ring placed as the apex (posterior end) of the orbit. what is that muscle inferior oblique
what muscles work in conjunction to turn pupil upward and raise eyelid further superior oblique and levator plapebrae
voluntary lateral movement of the eyeball is innervated by what cranial nerve CN 6
voluntary superior rotation of the eyeball is innervated by wht cranial nerve CN 4
masseter, temporalis, lateral pterygoid and the medial pterygoid muscles are all responsible for what action mastication
This muscle of the TMJ Elevates and protrudes mandible, thus closing jaws; deep fibers retrude it Massester
This mussle of the TMJ Elevates mandible closing jaws; its posterior fibers retrude mandible after protrusion Temporalis
acting alternately which muscles they produce a grinding motion of the jaw Lateral and medial pterygoid muscles
the V3 branch of cranial nerve 5 innervates what musscles musscles of mastication
the temperomandibular joint is what kind of joint synovial
This ligament prevents the mandible from moving posteriorly and inferiorly temperomandibular ligament.
These are four pairs of extrinsic muscles hyoglossus, styloglossus, genioglossus, and palatoglossus to what structure the tongue
this muscle Originates from body and greater horn of hyoid bone and inserts into the side and inferior aspect of the tongue. Its action is to depress and retract the tongue. Hyoglossus
this muscle Originates from the styloid process and inserts into the side and inferior aspect of the tongue. Its action is to retract the tongue and draw it up to create a trough for swallowing Styloglossus
this musscle Originates from the superior part of mental spine of the mandible and inserts into the dorsum of tongue and body of hyoid bone. Its action is to depress the tongue; its posterior part pulls tongue anteriorly for protrusion Genioglossus
Originates from the palatine aponeurosis of soft palate and inserts into the side of the tongue. Its action is to elevate the posterior part of the tongue. Palatoglossus
all the muscles of the tongue are innervated by cranial nerve 12 except for the Palatoglossus. it is innervated by what cranial nerve CN 10
Both extrinsic and intrinsic muscles are utilized in speaking, mastication and swallowing yet which group is responsible for changing the shape of the tongue intrinsic
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