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17 Cards in this Set
- Front
- Back
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major muscle of scalp
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occipitofrontalis m.
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two bellies of occipitofrontalis m
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frontal belly
occipital belly separated by flat sheet of connective tissue (epicranial aponeurosis) |
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epicranial aponeurosis
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flat sheet of connective tissue
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frontal belly occipitofrontalis m actions
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wrinkling forehead
raising eyebrows pulling scalp forward |
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temporoparietalis m location, action, origin, insertion
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l: lateral sides of epicranium
a: tense scalp and move auricle of ear o,i: epicranial aponeurosis |
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orbicularis oculi m. o,i,a
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EYE
sphincter muscle of eye o: medial wall of eye orbit i: circumferential m of eye a: close the eye (exaggerated blink) |
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corrugator supercilii m. o,i,a
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EYE
o: orbital rim of frontal bone i: eyebrow a: pull skin inferiorly and wrinkles forehead into a frown |
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levator palpebrae superioris m. i,a
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EYE
i: upper eyelid a: elevates upper eyelid |
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procerus m.
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NOSE
vertical orientation over nasal bones |
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nasalis m
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NOSE
horizontal span inferior nasal bridge |
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buccinator m.
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MOUTH
horizontal m between jaws compresses cheeks when you are eating or sucking on a straw |
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orbicularis oris m.
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MOUTH
sphincter m. that inserts on skin surrounding mouth shapes lips for speech, food, facial expressions, purses lips together for a kiss |
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levator labii superioris m
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MOUTH
lateral to nose and inserts on superolateral edge of orbicularis oris m ELEVATES UPPER LIP |
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depressor anguli oris m
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MOUTH
inserts on skin at angle of mouth to DEPRESS CORNERS OF MOUTH |
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mentalis m
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MOUTH
elevates and protrudes lower lip |
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risorius m
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MOUTH
produces grimace-like tensing of mouth does not mean smile, but = painful expression *in tetanus, involved in "lockjaw" |
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platysma m.
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NECK
covers sides of neck o: fascia covering pectoralis and deltoid mm and extends upward i: interior edge of mandible a: DEPRESSES mandible = expression of HORROR and DISGUST |
