Restorative 2 Flashcards by Study Lenzy

the point of muscle attachment which moves the least

origin

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the point of muscle attachment which moves the most

insertion

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(epicranius) muscle that draw posteriorly, draw inferiorly

occipitofrontalis muscle

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frontalis

frontal belly

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occipitalis

occipital belly

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when contracted, this muscle raises the eyebrows and continual contraction form transverse frontal sulci

effect on surface form: occipitofrontalis muscle

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wrinkles that run a cross forehead

transverse frontal sulci

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prude fan shape muscle closes the mandible, used for chewing

temporalis muscle

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mastication; it closes the mandible and some side to side movement

function of the temporalis muscle

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what is the strongest jaw muscle of mastication

temporalis

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not strongest of jaw muscle

mandible

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orbicularis oculi, corrugator, levator palpebral superiors

muscle of the facial expression

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surrounds the eye leads

orbicularis oculi

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gravitation goes from moving in inferior to posterior view

funeral homes

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close the eyelid when contracted

function of the orbicularis oculi

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produce tears, also compresses the lacrimal sac

orbicularis oculi

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optic facial sulci (crows feet)

orbicularis oculi effect on the surface

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crows feet

acquired

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frowning muscle and pyramid shape muscle

corrugator

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draws the eyebrows downward &medially when contracted

function of the corrugator

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vertical interciliary sulci ( located below eyebrows)

corrugator effect on surface form

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elevate the upper eyelid (raise)

levator

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procerus muscle

muscle of the nose

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transverse interciliary sulci

procerus muscle effect on surface form

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facial sulcus

bucco

bucco (facial sulcus)

acquired

The very large muscle that covers the top and sides of the skull.

Occipitofrontalis

Three muscles in the region of the ear

Auricular

chewing

Muscle of mastication

Fan shaped muscle which retrieves the lower law and bring the teeth together. It has no effect on surface form.

Temporalis

This muscle raises the lower jaw; the only muscle of mastication which influences surface form. Injection of strong fluid into this muscle is an accepted method of mouth closure.

Masseter

Located at the medial end of the eyebrow, known as the (frowning muscle).

Corrugator

muscle of facial expression that runs from the inside of the eye socket to the superior tarsal plate of the eyelid

Levator Palpebrae superioris

muscle of facial expression, raises the upper lip and dilates the nostrils.

Lavator labii superioris alaeque nasi

muscle of facial expression – elevates and extends the upper lip.

Levator labii superioris

muscle of facial expression that arises from the mandible to insert into the anguli oris.

Depressor anguli oris (Triangularis)

muscle of facial expression. depresses the lower lip inferiorly and slightly laterally.

Depressor labii inferioris (Quadratus)

Lavator labii superioris alaeque nasi

Muscle of the face

Corrugator

Muscle of the face

orbicularis Oculi

Muscle of the face

Levator Palpebrae superioris

Muscle of the face

Levator labii superioris

Muscle of the face

Depressor anguli oris (Triangularis)

Muscle of the face

Depressor labii inferioris (Quadratus)

muscle of the face

Procerus

muscle of the nose

A long thin slip of muscle which extends vertically from the lower part of the nasal bone to the skin of the lower part of the forehead.

Procerus

Obicularis oris

Muscles of the mouth

puckering muscle - It is a large sphincter muscle which extends from the base of the nose to the lower jaw and both checks

Obicularis oris

Zygomaticus major

Muscles of the mouth

Buccinator

Muscles of the mouth

Risorius

Muscles of the mouth

Mentalis

Muscles of the mouth

Levator anguli oris

Muscles of the mouth

Zgomaticus major

Muscles of the mouth

Zygomaticus minor

Muscle of the mouth

Draws the angle of the mouth backward and upward, known as the (laughing muscle).

Zygomaticus major

Principle muscle of the cheek. Originates in the skin over the molar teeth and inserts into the skin at the anguli oris (corners of the mouth)

Buccinator

A superficial muscle which runs across the cheek (retracts the angle of the mouth).

Risorius

Muscle which wrinkles the chin, raises and protrudes the lower lip.

Mentalis

small muscle at the angle of the mouth. Elevated the angle of the mouth.

Levator anguli oris

extends from the cheekbone to the angle of the mouth. Draws the upper lip posteriorly, superiorly, and laterally as in smiling or laughing.

Zgomaticus major

muscle of the face – draws the upper lip, superiorly, and laterally as in smiling or laughing.

Zygomaticus minor

broad flat muscle covering the neck, it also arises from the fascia (a thin layer of connective tissue) covering the large muscles in the region of the collar bone, ribs and shoulder.

Platysma

relatively thick muscle which passes obliquely (slanting) across the side of the neck, used to measure the widest part of the neck.

Sternocleidomastoid (SCM)

double bellied muscle of the neck, which attaches to the mastoid process and the mandible.

Digastric

Platysma

Muscle of the neck

Sternocleidomastoid (SCM)

Muscle of the neck

Digastric

Muscle of the neck

platysma, sternocleidomastoid and digastricus

muscles of the neck

depresses mandible and lower jaw

platysma

sheets of muscles

platysma

bucco, mandibular sulcus, serrated jawline, platysmal sulci

effect of platysma

lower the head, rotate the head

Sternocleido-mastoid

widest part of the neck

effect of Sternocleido- mastoid

hyoid bone, helps manipulate the tongue

Digastricus

cord of the neck, vertically

effect of Digastricus

quadratus labii superioris, levator anguli oris, risorius, depressor labii inferioris, and mentalis (chin)

muscle of the mouth and anterior cheek headed muscle

Levator labii superioris alaeque, levator labii superioris, and zygomaticus minor

Quadratus labii superioris

larges muscle of the cheek

Quadratus labii superioris

raises the upper lip and dilates the nostrils

Levator labii superiors alaeque nasi

elevates and extends the upper lip

levator labii superioris

draws the superior lip superiorly and laterally

zygomaticus minor

this group of muscles serves to raise the upper lip to sneer

Quadratus labii superorisis

who sneers?

Elvis

elvate the angle of the mouth

levator anguli oris

effect of levator anguli oris

nasolabial fold

false smile muscle

risorious

retracts the angle of the mouth( narrowband muscle, pulls laterally)

risorious

not a paired muscle, elevates and protrudes the inferior lips

mentalis

mental eminence

effect of mentalis