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Anatomy 1L, Muscles > Muscles OIA > Flashcards

Muscles OIA Flashcards

1
Q

Orbicularis oculi Origin

A

frontal and maxillary bones

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2
Q

Orbicularis oculi Insertion

A

skin around eyes

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3
Q

Orbicularis oculi Action

A

close and squint eyes

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4
Q

Orbicularis oris Origin

A

maxilla and mandible

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5
Q

Orbicularis oris Insertion

A

skin around lips

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6
Q

Orbicularis oris Action

A

closes and protrudes lips

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7
Q

Masseter Origin

A

zygomatic arch

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8
Q

Masseter Insertion

A

mandibular ramus

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9
Q

Masseter Action

A

elevates mandible

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10
Q

Sternocleidomastoid Origin

A

manubrium and clavicle

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11
Q

Sternocleidomastoid Insertion

A

Mastoid process

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12
Q

Sternocleidomastoid Action

A

head flexion and rotation

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13
Q

Trapezius Origin

A

occipital bone, c7 and thoracic vertebrae

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14
Q

Trapezius Insertion

A

spine of scapula and clavicle

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15
Q

Trapezius Action

A

stabilizes, raises and rotates scapula

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16
Q

Rectus Abdominis Origin

A

pubic bone

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17
Q

Rectus Abdominis Insertion

A

xiphoid process and ribs 5-7

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18
Q

Rectus Abdominis Action

A

flexes, rotates vertebrae, increases intraabdominal pressure

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19
Q

External oblique Origin

A

lower 8 ribs

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20
Q

External oblique Insertion

A

linea alba

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21
Q

External oblique Action

A

flexes, rotates, and laterally flexes trunk

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22
Q

Internal oblique Origin

A

lumbar fascia and iliac crest

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23
Q

Internal oblique Insertion

A

linea alba, pubic crest and last 3-4 ribs

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24
Q

Internal oblique Action

A

flexes, rotates and laterally flexes trunk

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25
Q

Erector spinae Origin

A

iliac crest, ribs and vertebrae

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26
Q

Erector spinae Insertion

A

ribs, vertebrae and skull

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27
Q

Erector spinae Action

A

keep the spine erect and extends trunk

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28
Q

Deltoid Origin

A

clavicle, acromion and spine of scapula

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29
Q

Deltoid Insertion

A

deltoid tuberosity of humerus

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30
Q

Deltoid Action

A

abducts, flexes, extends and rotates arm

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31
Q

Pectoralis major Origin

A

clavicle, ribs 1-6 and sternum

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32
Q

Pectoralis major Insertion

A

intertubercular groove of humerus

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33
Q

Pectoralis major Action

A

flexes and adducts arm

34
Q

Latissimus dorsi Origin

A

iliac crest, lower thoracic and lumbar vertebrae

35
Q

Latissimus dorsi Insertion

A

intertubercular groove of humerus

36
Q

Latissimus dorsi Action

A

extends and adducts arm

37
Q

Biceps brachii Origin

A

coracoid process and glenoid cavity of shoulder joint

38
Q

Biceps brachii Insertion

A

radial tuberosity

39
Q

Biceps brachii Action

A

flexes forearm

40
Q

Triceps brachii Origin

A

scapula and posterior humerus

41
Q

Triceps brachii Insertion

A

olecranon process of shoulder joint

42
Q

Triceps brachii Action

A

extends forearm

43
Q

Brachioradialis Origin

A

distal humerus

44
Q

Brachioradialis Insertion

A

styloid process of radius

45
Q

Brachioradialis Action

A

flexes forearm

46
Q

Iliopsoas Origin

A

Ilium, sacrum, T12 and lumbar vertebrae

47
Q

Iliopsoas Insertion

A

lesser trochanter and proximal femur

48
Q

Iliopsoas Action

A

flexes thigh

49
Q

Gluteus maximus Origin

A

Ilium, sacrum and coccyx

50
Q

Gluteus maximus Insertion

A

gluteal tuberosity

51
Q

Gluteus maximus Action

A

extends and abducts thigh

52
Q

Gluteus medius Origin

A

lateral ilium

53
Q

Gluteus medius Insertion

A

greater trochanter

54
Q

Gluteus medius Action

A

abducts and medially rotates thigh

55
Q

Sartorius Origin

A

anterior superior iliac spine

56
Q

Sartorius Insertion

A

medial proximal tibia

57
Q

Sartorius Action

A

flexes, abducts, laterally rotates thigh

58
Q

Rectus femoris Origin

A

anterior inferior iliac spine

59
Q

Rectus femoris Insertion

A

tibial tuberosity

60
Q

Rectus femoris Action

A

flexes the thigh and extends the leg

61
Q

Vastus muscle group Origin

A

greater trochanter, intertrochanteris line and proximal femoral diaphysis

62
Q

Vastus muscle group Insertion

A

tibial tuberosity

63
Q

Vastus muscle group Action

A

extends leg

64
Q

Adductor muscle group Origin

A

pubic bone

65
Q

Adductor muscle group Insertion

A

linea aspera

66
Q

Adductor muscle group Action

A

adduct and medially rotates thigh

67
Q

Biceps femoris Origin

A

ischial tuberosity and linea aspera

68
Q

Biceps femoris Insertion

A

head of fibula and lateral condyle of tibia

69
Q

Biceps femoris Action

A

extends, laterally rotates thigh and flexes leg

70
Q

Semitendinosus Origin

A

Ischial tuberosity

71
Q

Semitendinosus Insertion

A

proximal and medial tibia

72
Q

Semitendinosus Action

A

extends, medially rotates thigh and flexes leg

73
Q

Semimembranosus Origin

A

Ischial tuberosity

74
Q

Semimembranosus Insertion

A

proximal and medial tibia and lateral condyle of femur

75
Q

Semimembranosus Action

A

extends, medially rotates thigh and flexes leg

76
Q

Gastrocnemius Origin

A

medial and lateral femoral condyles

77
Q

Gastrocnemius Insertion

A

posterior calcaneus

78
Q

Gastrocnemius Action

A

plantarflexes foot and flexes leg

79
Q

Tibialis anterior Origin

A

proximal tibia

80
Q

Tibialis anterior Insertion

A

first metatarsal and medial of cuniform

81
Q

Tibialis anterior Action

A

dorsiflexes and inverts foot

Anatomy 1L, Muscles (2 decks)

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