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SSIP > Muscles of facial expression > Flashcards

Muscles of facial expression Flashcards

1
Q

muscles of the orbital group (2)

A

orbicularis oculi

corrugator supercilii

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2
Q

muscles of the nasal group (3)

A

nasalis
procerus
depressor septi

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3
Q

examples of muscles of oral group (6)

A 
depressor anguli oris 
zygomatic major 
levator labii superioris 
levator labii superioris alaeque nasi 
orbicularis oris 
buccinator
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4
Q

other muscles shown on prosection

A

occipitofrontalis

platysma

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5
Q

neck mucles shown

A

posterior belly of digastric

stylohyoid

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6
Q

role of transverse nasalis

A

compresses nasal aperture

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7
Q

role of alar nasalis

A

draws cartilage downwards and laterally

opening nostrils

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8
Q

role of procerus

A

draws down medial eyebrows

producing transverse wrinkles over nose bridge

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9
Q

role of depressor septi

A

pulls nose inferiorly

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10
Q

role of depressor anguli oris

A

draws down and lateral corners of mouth

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11
Q

role of depressor labii inferioris

A

draws lower lip downwards and lateral

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12
Q

role of mentalis

A

raises and protrudes the lips

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13
Q

role of risorius

A

retracts corner of mouth

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14
Q

role of zygomatic major

A

draws corner of mouth up and lateral

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15
Q

role of zygomatic minor

A

draws upper lip upwards

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16
Q

role of levator labii superioris

A

raises upper lip and helps form nasolabial furrow

17
Q

role of levator labii superioris alaeque nasi

A

raises upper lip and open nostrils

18
Q

role of levator anguli oris

A

raises corner of mouth

19
Q

role of orbicularis oris

A

closes lips; protrudes lips

20
Q

role of buccinator

A

presses the cheek against teeth

21
Q

role of palprebral orbicularis oculi

A

gentle eyelid closure

22
Q

role of orbital orbicularis oculi

A

forceful eyelid closure

23
Q

branches of the facial nerve

A 
temporal 
zygomatic 
buccal 
marginal mandibular 
cervical
24
Q

temporal branch innervates

A

frontalis
orbicularis oculi
corrugator supercilii

25
Q

zygomatic branches innervate

A

orbicularis oculi

26
Q

buccal branches innervate

A

orbicularis oris
buccinator
zygomatics

27
Q

marginal mandibular branches innervate

A

mentalis

28
Q

cervical branch innervates

A

platysma

29
Q

where does the facial nerve exit the skull

A

stylomastoid foramen

SSIP (1 decks)

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