muscles of the face

Start Studying!

Terms

undefined, object

copy deck

posterior or backward movement of the jaw......: retrusion of the mandible
muscles of facial expressions, causes what...: a wrinkling of the skin in the form of an expression
name the insertion point of the temporalis muscle: on coronoid process of the mandible
what does the stenocleidomastoid muscle do?: helps you to say yes or no.
name the action of the stylohyoid muscle: action: elevates the hyoid
name the fan-shaped muscle: temporalis muscle
name the action of the omohyoid muscle: depresses the hyoid, there is a superior and inferior belly with a tendon that separates the two
the action of the medial pterygoid......: elevation of the mandible (close jaw)
opening the mouth....: depression of the mandible
what happens if we contract anteriorly?: Pulls the coronary process up; elevation of the mandible
what is the origin and insertion of the anterior belly?: the origin: on the immediate tendon
insertion:medial surface of the mandible
the buccinator muscle does what?: picks food up from buccal vestible and puts back on surface of the teeth, assists in mastication. shortens cheek vertically and horizontally
what is the geniohyloid muscle?: the muscle that lies superior to the mylohyoid muscle
anterior or foward motion of the jaw........: protrusion of the mandible
what is the purpose of the anterior belly?: depresses the mandible
name the two bellys of the digastric muscle: anterior and posterior belly
orbicularis oris does what?: closes or purses the lips (pucker mouth)
left or right movement of the jaw......: lateral excursion
this muscle is not a very strong muscle: the mylohyoid muscle
What happens if we contract posterior?: the coronary process will be pulled back; retrusion
mentalis muscle does what?: raises the chin, protrudes the lower lip, wrinkles the chin
If I move my jaw to the left, left lateral excursion, it is the same as......: left working, right balance and (vice versa)
zygomaticus minor does what?: elevates the upper lip
can fibers work independanty?: Yes
name the origin of the mylohyoid muscle: on mylohyoid line in medial surface of the mandible.
head of the muscle refers to what?: the direction of the fibers
name the four pairs of infra hyoid muscles: they work to stabilize the hyoid bone.
sternothyroid, sternohyoid, thyrohyoid, omohyoid
name the four major muscles of mastication.: Masseter, medial pterygoid, lateral pterygoid and temporalis muscle
zygomatious major does what?: elevates the corner of the mouth or lip and pulls it laterally
name the action of the posterior belly.: raises the hyoid
name the origin and the insertion of the posterior belly: origin:on mastoid process (non-moveable bone)
insertion:intermediate tendon
the risorius muscle does what?: a longitudinal muscle that widens smile, and pulls commisure in a posterior direction
the platysma muscle does what?: pulls the corner of the mouth down; large muscle of the neck
depressor anguli oris does what?: depresses the angle of the mouth
levator anguli oris does what?: elevates the angle of the mouth (smile)
name the action of the thyrohyoid muscle: depresses the hyoid bone; raises the thyroid cartilage
the insertion point for the medial pterygoid muscle is the...: medial surface of the mandible at the angle
what does the occipitalfrontalis or epicranial muscle do?: wrinkles the forehead
fill in the blank: muscles to elevate are very _____ while muscles to open are very ________: powerful, weak
name the action of the myohyoid muscle: action: elevates the hyoid, depresses mandible, and elevates the tongue
name the origin and insertion of the thyrohyoid muscle: origin:thyroid
insertion:hyoid
the origin of the medial pterygoid muscle is the ...: medial surface of the lateral pterygoid plate
the levator labi superioris muscle does what?: elevates the upper lip
what does the stylopharyngeus muscle do?: elevates and widens pharynx
name the origin and insertion of the inferior belly of the omohyoid muscle: origin: scapula (wing bone)
insertion: tendon
what do the minor muscles of mastication do?: helps depression oft he mandible or opening of the mandible. Has two groups suprahyoid and infrahyoid
name the most forceful action of mastication: chewing or elevation of mandible
name the action of the sternohyoid: to depress or stabilize the hyoid bone
orbicularis oculi does what?: surrounds the eyelid; closes eyelid
what does the superior, inferior and middle constrictor muscles do?: they raise pharynx and larynx
name the intrinsic muscles of the tongue: they are labeled according to direction.
superior longitudinal, transverse, vertical, and inferior longitudinal
name the action of the lateral pterygoid muscle...: pulls condyle forward;results in some depression and protrusion of the mandible. Forces mandible forward
name the origin and insertion of the sternohyoid muscle: origin:sternum
insertion:all the up on the hyoid bone
what do the superior and inferior logitudinal intrinsic muscles of the tongue do?: shortens, thickens and curls the tongue
name the origin and insertion for the sternothyroid: origin: sternum
insertion:thyroid cartilage
name the muscles of the pharynx?: they are voluntary muscles that initiates the swallowing process and moves food along: superior, inferior, middle constrictors and stylopharyngeus
what do the transverse tongue muscles do?: runs left to right; make tongue long and narrow
the lateral pterygoid lies where?: within the infratemporal fossa, deep to the temporalis muscle
name the origin of the temporalis muscle: inferior (which is on parietal bone) temporal line; lies in temporal fossa
name the origin and insertion for the stylohyoid muscle: origin: styloid process
insertion: hyoid bone
what do vertical muscles do?: top to bottom and makes tongue long and narrow
name the four pairs of suprahyoid muscles: digastric, mylohyoid, stylohyoid, geniohyoid
name the broad, thick rectangular muscle on each side of the face, anterior to the parotid salivary glands: the masseter muscle
name the omohyoid superior belly origin and insertion: origin: tendon that separates the two bellys
insertion:hyoid bone
the origin of the superficial head of the masseter muscle is: anterior 2/3 of inferior border of the zygomatic arch
depressor labii inferioris: depresses lower lip, exposes incisors
name the origin to the inferior head of the lateral pterygoid muscle: lateral surface of lateral pterygoid plate
the masseter muscle has two heads....: superficial head (closest to the skin area)
deep head (more medial)
name the muscles of the soft palate: they are volunary muscles that are involved in speaking and swallowing
levator labii superioris alaeque nasi: flares the nostrils
name the origin of the superior head of the lateral pterygoid muscle: greater wing of the sphenoid, closest to its interior border
what does the tensor veli palatine do?: tenses ans lowers the soft palate
foramen cecum?: small depression at the apex of the tongue; whats left over of thyrogland duct
palatopharyngeus (posterior tonsillar pillar)?: moves palate posteriorly and inferiorly and posterior pharyngeal wall
the origin of the deep head of the masseter muscle is...: posterior 1/3 medial surface of the zygomatic arch
what do the muscles of the uvula do?: raises uvula to pharyngeal wall
name the action of the stenothyroid muscle: depresses and pulls thyroid cartilage
name the insertion point for the superior head of the lateral pterygoid muscle: anterior surface of the neck of the condyle
the insertion for the superficial head of the masseter muscle is: angle of the mandible, lateral surface
name the insertion point for the inferior head of the lateral pterygoid muscle: neck of the condyle and parts of the capsule of TMJ.
the insertion for the deep head of the masseter muscle is the.....: ramus of mandible, lateral surface
name the action of the masseter muscle: elevation of the mandible, closing the mandible. The only thing a masseter can do is elevation. When the muscle contracts, the mandible elevates
what does the mylohyoid muscle do?: forms the floor of the mouth
hyoid muscles do what?: assist in the action of mastication and swallowing
If I contract my right lateral pterygoid what results?: left lateral excursion (will pull jaw to the left)
name the two important parts of a muscle.: origin-least moveable
insertion-most moveable
what are lingual tonsils?: lateral border of tongue at posterior 1/3, foliate papillae
name the extrinsic muscles: genioglossus, styloglossus, hypoglossus
what does the genioglossus muscle do?: protrudes tongue and depresses portions
what are filiform lingual papillae?: very small hair-like projections; most numerous
what are fungiform papillae?: small larger dots, anterior 2/3; loos like a mushroom under a microscope
what does the styloglossus muscle do?: retracts the tongue
wht does the hypoglossus muscle do?: depresses the tongue
what does the palatoglossus muscle do?: depresses the soft palate, elevates arches in the tongue
what are circumvallae papillae?: largest papillae on the tongue
what does the levator veli palatini do?: raises the soft palate to pharyngeal wall
thyroid glands?: develops on the dorsal surface of the tongue, posterior 1/3
what does the body of the tongue consist of?: it is composed of two muscle groups; intrinsic, located totally within the tongue and extrinsic, originates outside of the tongue
name the insertion and action of the mylohyoid muscle: insertion: hyoid bone
action: depresses the tongue or elevates the hyoid bone. By doing this, it helps lift the tongue
closing the mouth is referred to as......: elevation or closure of the mandible
name the origin and insertion point of the geniohyoid: origin: genial tubercles on the medial surface of mandible in midline
insertion: body of the hyoid bone
name the insertion point of the temporalis muscle: on coronoid process of the mandible

Start Studying!

Deck Info

Number of cards 102