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A & P Fall 2013 > Muscle 2: Orgin, Insertion, Nerve, Action > Flashcards

Muscle 2: Orgin, Insertion, Nerve, Action Flashcards

1
Q

Occipitalfrontalis:

Frontalis (frontal Belly) - Orgin

A

epicranial aponeurosis

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2
Q

Occipitalfrontalis:

Frontalis (frontal Belly) - Insertion

A

above eyes & nose

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3
Q

Occipitalfrontalis:

Frontalis (frontal Belly) - Nerve

A

Facial Nerve VII

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4
Q

Occipitalfrontalis:

Frontalis (frontal Belly) - action

A

raises eyebrows when aponeurosis is “fixed”

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5
Q

Occipitalfrontalis:

Occipitalis (occipital belly)- Orgin

A

Occipital & temporal bones

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6
Q

Occipitalfrontalis:

Occipitalis (occipital belly)- Insertion

A

Epicranial apondurosis

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7
Q

Occipitalfrontalis:

Occipitalis (occipital belly)- Nerve

A

Facial Nerve VII

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8
Q

Occipitalfrontalis:

Occipitalis (occipital belly)- action

A

“fixes” aponeurosis

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9
Q

Masseter- orgin

A

zygomatic arch

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10
Q

Masseter- insertion

A

Mandibular angle & ramus

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11
Q

Masseter- nerve

A

Trigeminal Nerve V

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12
Q

Masseter- action

A

closes jaw (prime mover)

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13
Q

Sternocleidomastoid - orgin (2)

A
  • mandibular of sternum

- medial clavical

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14
Q

Sternocleidomastoid - insertion

A

Mastoid process

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15
Q

Sternocleidomastoid - nerve

A

accessory nerve XI

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16
Q

Sternocleidomastoid - action (3)

A
  • flexes neck (against gravity)
  • rotates head to oppisite side
  • side-branch head to same side
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17
Q

Trapezius - orgin (2)

A
  • occipital boan

- Spinous processes C7 & T1-T12

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18
Q

Trapezius - insertion (3)

A
  • Acromion
  • scapular spine
  • lateral clavical
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19
Q

Trapezius - nerve

A

accessory nerve XI

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20
Q

Trapezius - action

A

-stabilizes scapula in 3 planes: elevates, retracts, depresses

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21
Q

Pectoralis major - orgin (2)

A
  • medial clavical

- sternal border & costal cartilage 1-6

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22
Q

Pectoralis major - insertion

A

intertubercular groove of humerus

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23
Q

Pectoralis major - nerve

A

pectoral nerve

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24
Q

Pectoralis major - action (4)

A
  • shoulder flexion
  • shoulder internal rotation
  • shoulder adduction
  • can lift rib cage
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25
Q

Rectus abdominis - orgin (2)

A
  • pubic crest

- pubic symphsis

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26
Q

Rectus abdominis - insertion (2)

A
  • xiphoid process

- costal cartilage of ribs 5-7

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27
Q

Rectus abdominis - nerve

A

intercostal nerves

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28
Q

Rectus abdominis - action (3)

A
  • flexes & rotates trunk
  • stabilizes pelvis while walking
  • increases intra-abdominal pressure
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29
Q

Deltoid - orgin (3)

A
  • acromion
  • scapular spine
  • lateral clavical
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30
Q

Deltoid - Insertion

A

deltoid tuberosity

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31
Q

Deltoid - nerve

A

axillary nerve

32
Q

Deltoid - action (3)

A
  • shoulder abduction
  • shoulder flexion & internal rotation
  • shoulder extension & external rotation
33
Q

Triceps Brachill - orgin (2)

A
  • infraglenoid tubercle of scapula

- posterior shaft of humerus

34
Q

Triceps Brachii - insertion

A

olecranon process

35
Q

Triceps Brachii - nerve

A

radial nerve

36
Q

Triceps Brachii - action

A

elbow extension

37
Q

Biceps Brachii - orgin (2)

A
  • coracoid process

- supraglenoid tubercle via intertubercluar groove

38
Q

Biceps Brachii - insertion

A

radial tuberosity

39
Q

Biceps Brachii - nerve

A

musculocutaneous nerve

40
Q

Biceps Brachii - action (2)

A
  • elbow flexion

- forearm supination

41
Q

Flexor carpi radialis - orgin

A

medial epicondyle

42
Q

Flexor carpi radialis - insertion

A

base of 2nd & 3rd metacarpals

43
Q

Flexor carpi radialis - nerve

A

median nerve

44
Q

Flexor carpi radialis - action (2)

A
  • wrist flexion

- radial deviation of wrist

45
Q

Flexor carpi ulnaris - orgin

A

medial epicondyle

46
Q

Flexor carpi ulnaris - insertion (2)

A
  • pisiform & hamate

- base of 5th metacarpal

47
Q

Flexor carpi ulnaris - nerve

A

ulnar nerve

48
Q

Flexor carpi ulnaris - action (3)

A
  • wrist flexion
  • ulnar deviation of wrist
  • stabilizes wrist during finger expention
49
Q

Extensor carpi ulnaris - orgin

A

lateral epicondyle

50
Q

Extensor carpi ulnaris - insertion

A

base of 5th metacarpal

51
Q

Extensor carpi ulnaris - nerve

A

radial nerve

52
Q

Extensor carpi ulnaris - action (3)

A
  • wrist extension
  • ulnar deviation of wrist
  • stabilizes wrist during finger extension
53
Q

Rectus femoris - orgin

A

anterior inferior iliac spine & superior margin of acetabulum

54
Q

Rectus femoris - insertion

A

patella & tibial tuberosity via patellar tendon

55
Q

Rectus femoris - nerve

A

femoral nerve

56
Q

Rectus femoris - action

A

knee extension & assists with hip flexion

57
Q

Adductor longus - orgin

A

anterior pubis

58
Q

Adductor longus - insertion

A

linea aspera

59
Q

Adductor longus - nerve

A

obturator nerve

60
Q

Adductor longus - action (3)

A
  • hip adduction
  • hip internal rotation
  • hip flexion
61
Q

Biceps femoris - orgin (2)

A
  • ischial tuberosity

- linea aspera

62
Q

Biceps femoris - insertion (2)

A
  • head of fibula

- lateral condyle of tibia

63
Q

Biceps femoris - never

A

sciatic nerve

64
Q

Biceps femoris - action

A
  • hip extension

- knee flexion

65
Q

semimembranosus - orgin

A

ischial tuberosity

66
Q

semimembranosus - insertion

A

medial condyle of tibia

67
Q

semimembranosus - nerve

A

sciatic nerve

68
Q

semimembranosus - action (3)

A
  • hip extension
  • knee flexion
  • hip internal rotation
69
Q

Tibialis anterior - orgin (2)

A
  • lateral condyle of tibia

- upper 2/3 tibial shaft

70
Q

Tibialis anterior - insertion (2)

A
  • inferior surface medial cuneiform

- inferior surface of 1st metatarsal

71
Q

Tibialis anterior - nerve

A

peroneal nerve

72
Q

Tibialis anterior - action

A

ankle dorsiflexion

73
Q

gastrocnemius - orgin

A

medial & lateral condlyes of femur

74
Q

gastrocnemius - insertion

A

calcaneus via achilles tendon

75
Q

gastrocnemius - nerve

A

tibial nerve

76
Q

gastrocnemius - action (2)

A
  • ankle plantarflexion when knee is extended

- assists with knee flexion when ankle is dorsiflexed

A & P Fall 2013 (6 decks)

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