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

Muscle 2: Orgin, Insertion, Nerve, Action Flashcards

(76 cards)

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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
Rectus abdominis - orgin (2)
- pubic crest | - pubic symphsis
26
Rectus abdominis - insertion (2)
- xiphoid process | - costal cartilage of ribs 5-7
27
Rectus abdominis - nerve
intercostal nerves
28
Rectus abdominis - action (3)
- flexes & rotates trunk - stabilizes pelvis while walking - increases intra-abdominal pressure
29
Deltoid - orgin (3)
- acromion - scapular spine - lateral clavical
30
Deltoid - Insertion
deltoid tuberosity
31
Deltoid - nerve
axillary nerve
32
Deltoid - action (3)
- shoulder abduction - shoulder flexion & internal rotation - shoulder extension & external rotation
33
Triceps Brachill - orgin (2)
- infraglenoid tubercle of scapula | - posterior shaft of humerus
34
Triceps Brachii - insertion
olecranon process
35
Triceps Brachii - nerve
radial nerve
36
Triceps Brachii - action
elbow extension
37
Biceps Brachii - orgin (2)
- coracoid process | - supraglenoid tubercle via intertubercluar groove
38
Biceps Brachii - insertion
radial tuberosity
39
Biceps Brachii - nerve
musculocutaneous nerve
40
Biceps Brachii - action (2)
- elbow flexion | - forearm supination
41
Flexor carpi radialis - orgin
medial epicondyle
42
Flexor carpi radialis - insertion
base of 2nd & 3rd metacarpals
43
Flexor carpi radialis - nerve
median nerve
44
Flexor carpi radialis - action (2)
- wrist flexion | - radial deviation of wrist
45
Flexor carpi ulnaris - orgin
medial epicondyle
46
Flexor carpi ulnaris - insertion (2)
- pisiform & hamate | - base of 5th metacarpal
47
Flexor carpi ulnaris - nerve
ulnar nerve
48
Flexor carpi ulnaris - action (3)
- wrist flexion - ulnar deviation of wrist - stabilizes wrist during finger expention
49
Extensor carpi ulnaris - orgin
lateral epicondyle
50
Extensor carpi ulnaris - insertion
base of 5th metacarpal
51
Extensor carpi ulnaris - nerve
radial nerve
52
Extensor carpi ulnaris - action (3)
- wrist extension - ulnar deviation of wrist - stabilizes wrist during finger extension
53
Rectus femoris - orgin
anterior inferior iliac spine & superior margin of acetabulum
54
Rectus femoris - insertion
patella & tibial tuberosity via patellar tendon
55
Rectus femoris - nerve
femoral nerve
56
Rectus femoris - action
knee extension & assists with hip flexion
57
Adductor longus - orgin
anterior pubis
58
Adductor longus - insertion
linea aspera
59
Adductor longus - nerve
obturator nerve
60
Adductor longus - action (3)
- hip adduction - hip internal rotation - hip flexion
61
Biceps femoris - orgin (2)
- ischial tuberosity | - linea aspera
62
Biceps femoris - insertion (2)
- head of fibula | - lateral condyle of tibia
63
Biceps femoris - never
sciatic nerve
64
Biceps femoris - action
- hip extension | - knee flexion
65
semimembranosus - orgin
ischial tuberosity
66
semimembranosus - insertion
medial condyle of tibia
67
semimembranosus - nerve
sciatic nerve
68
semimembranosus - action (3)
- hip extension - knee flexion - hip internal rotation
69
Tibialis anterior - orgin (2)
- lateral condyle of tibia | - upper 2/3 tibial shaft
70
Tibialis anterior - insertion (2)
- inferior surface medial cuneiform | - inferior surface of 1st metatarsal
71
Tibialis anterior - nerve
peroneal nerve
72
Tibialis anterior - action
ankle dorsiflexion
73
gastrocnemius - orgin
medial & lateral condlyes of femur
74
gastrocnemius - insertion
calcaneus via achilles tendon
75
gastrocnemius - nerve
tibial nerve
76
gastrocnemius - action (2)
- ankle plantarflexion when knee is extended | - assists with knee flexion when ankle is dorsiflexed

A & P Fall 2013 (6 decks)

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