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A&P AOI 2 > 1/2 AOI > Flashcards

1/2 AOI Flashcards

1
Q

frontalis action

A

raises eyebrows

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2
Q

frontalis origin

A

epicranial aponeurosis

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3
Q

frontalis insertion

A

skin of eyebrows and root of nose

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4
Q

occipitalis action

A

pulls scalp posteriorly

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5
Q

occipitalis origin

A

occipital and temporal bones

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6
Q

occipitalis insertion

A

epicranial aponeurosis

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7
Q

temporalis action

A

closes jaw, elevates and retracts mandible

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8
Q

temporalis origin

A

temporal fossa

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9
Q

temporalis insertion

A

coronoid process of mandible

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10
Q

masseter action

A

prime mover of jaw closure, elevates mandible

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11
Q

masseter origin

A

zygomatic arch and zygomatic bone

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12
Q

masseter insertion

A

angle and ramus of manidble

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13
Q

medial pterygoid action

A

acts with lateral pterygoid muscle to protrude mandible and promote side-to-side action

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14
Q

medial pterygoid origin

A

medial surface of lateral pterygoid plate of sphenoid bone, maxilla and palatine bone

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15
Q

medial pterygoid insertion

A

medial surface of mandible near angle

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16
Q

lateral pterygoid action

A

forward sliding and side-to-side grinding movements of lower teeth

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17
Q

lateral pterygoid origin

A

greater wing and lateral pterygoid plate of sphenoid bone

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18
Q

lateral pterygoid insertion

A

condyle of mandible and temporomandibular joint

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19
Q

zygomaticus action

A

raises lateral corners of mouth upwards

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20
Q

zygomaticus origin

A

zygomatic bone

21
Q

zygomaticus insertion

A

skin and muscle at the corner of mouth

22
Q

buccinator is the muscle of…

A

mastication

23
Q

buccinator action

A

compresses cheek and draws mouth laterally

24
Q

buccinator origin

A

molar region of maxilla and mandible

25
Q

buccinator insertion

A

orbicularis oris

26
Q

platysma action

A

tenses skin of neck and depresses mandible

27
Q

platysma origin

A

fascia of chest

28
Q

platysma insertion

A

lower margin of mandible, skin and muscle at corner of mouth

29
Q

orbicularis oculi action

A

closes eye, produces blinking and squinting, draws eyebrows inferiorly

30
Q

orbicularis oculi origin

A

frontal and maxillary bones, ligaments around orbit

31
Q

orbicularis oculi insertion

A

tissue of eyelid

32
Q

orbucilaris oris action

A

closes lips, purses and protrudes lips

33
Q

orbicularis oris origin

A

maxilla and mandible

34
Q

orbicularis oris insertion

A

skin and muscle at the angles of the mouth

35
Q

levator labii superioris action

A

opens lips, raises and furrows upper lip

36
Q

levator labii superioris origin

A

zygomatic bone and infraorbital margin of the maxilla

37
Q

levator labii superioris insertion

A

skin and muscle of upper lip

38
Q

depressor labii inferioris action

A

draws lips inferiorly

39
Q

depressor labii inferioris origin

A

body of mandible lateral to its midline

40
Q

depressor labii inferioris insertion

A

skin and muscle of lower lip

41
Q

sternocleidomastoid action

A

flexes and laterally rotates head, neck flexion

42
Q

sternocleidomastoid origin

A

manubrium of sternum and medial portion of clavicle

43
Q

sternocleidomastoid insertion

A

mastoid process of temporal bone, superior nuchal line of occipital bone

44
Q

scalenes action

A

elevation of ribs 1&2, lateral flexion and rotation of neck

45
Q

scalenes origin

A

transverse processes of C3-7 vertebrae

46
Q

scalenes insertion

A

ribs 1-2

47
Q

serratus anterior action

A

abduction, medial rotation of and stabilization of scapula by holding it against thoracic wall

48
Q

serratus anterior origin

A

ribs 1-8

49
Q

serratus anterior insertion

A

medial border of the scapula

A&P AOI 2 (3 decks)

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