Restorative Art Chapter 3- Muscles of cranium, face, and neck

airbud123's version from 2015-05-07 02:23

Section 1

Question Answer
occipitofrontalis )epicranium-1broad muscle that covers the scalp posteriorly and anteriroly, causing eyeborws to raise and wrinkles to form
occipitofrontalis functionmuscle draws scalp posteriorly and anteriorly, causing the eyebrows to raise and wrinkles to form on forehead
temporalis(2)broad muscle arising in the temporal cavity and inserting into the mandible
temporalis functionmuscle of masstication and is the strongest chewing muscle. It closes the mandibleand assists in side to side movement
masseter(2)a muscle arising from the zygomatic arch and inserting into the mandible
masseter functiona muscle of mastication, it closes the mandible
orbicularis occuli (2)thi sphincter muscle surrounds the eye socket
orbicularis occuli functioncloses the eyelid and compresses the lacrimal sac
corrugator (2)pyramid shaped muscle of facial expression. It lies beneath the frontalis and orbicularis occuli. Known as the frowning muscle
corrugator functiondraws the eyebrows inferiorlly and laterally, as in frowning

Section 2

Question Answer
levator palpebrae superioris (2)a msucle of facial expression that runs from the inside of the eye socket to the superior tarsal plate of the eye lid
levator palpebrae superioris functionraises the upper eye lid
procerus (1)the muscle that covers the bridge of the nose
procerus functiondraws the skin of the forehead inferiorly, causing transverse and vertical wrinkles in the forehead
orbicularis oris (1)flat band of muscles in the upper and lower red lip and integumentary lips
orbicularis oris functioncloses the lips, compresses the lips agianst teeth. Shapes lips during speech
leavtor labii superioris alauque nasi (2) "elvis muscle"muscle of facial expression
leavtor labii superioris alauque nasi functionraises the upper lip and dilates the nostrils
levator labii superioris (2)a muscle of facial expression
levator labii superiorisfunctionextends the upper lip

Section 3

Question Answer
levator aguli oris (2)a small muscle at the angle of the mouth.
levator anguli oris functionelevates the angle of the mouth
zygomaticus minor (2)muscle of the face
zygomaticus minor functiondraws the upper lip superiorly and laterally
zygomaticus major (laughing muscle/2)extends from the cheekbone to the angle of the mouth
zygomaticus major functiondraws the upper lip posteriorly, superiorly, and laterally as in smiling or laighing
buccinator (trumpet muscle) (2)princliple msucle of the cheek. Originates in the skin over the molar teeth and inserts into the skin at the anguli oris (corner of mouth). It makes up part of the angulus oris emininces
buccinator functioncompresses the cheek, and pulls the anguli oris posteriorly. it produces the action of sucking
risorius (false smile muscle) (2)extends from skin over the masseter muscles to the corner of the mouth
risorius functiondraws corner of the mouth posteriorly
derpessor anguli oris (2) (triangularis)muslce of facial expression that arises from the mandible to insert into the anguli oris
depressor anguli oris functiondepresses the anfle os the mouth

Section 4

Question Answer
depressor labii inferioris (quadtratus) (2)muscle of facial expression
depressor labii inferioris functiondepresses the lower lip inferiorly and slightly laterally
mentalis (1)muscle located on the tip of chin
mentalis functionelevates and protrudes the lower lip. It also wrinkles the skin over the chin
platysma (2)thin layer of muscle covering the anterior aspect of the neck
platysma functionwrinkles the skin of the neck and chest. Also depresses the mandible and anguli oris, as in pouting
sternocleidomastoidthick muscle that originates from the head of the sternum and clavical, and inserts at the mastoid process of the temporal bone
scm functionrotates and depresses the head
digastric (2)double bellied msucle of the neck, which attaches ti the mastoid process and the mandible
digastric functiondraws the hyoid bone superiorlly

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