Anatomy > Appendicular Muscle Actions > Flashcards

Appendicular Muscle Actions Flashcards

(50 cards)

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1
Q

serratus anterior action

A
  • protracts scapula (throwing a punch)

- stabilize and holds scapula flush to body wall

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2
Q

upper trapezius action

A

-elevates pectoral girdle

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3
Q

middle trapezius action

A
  • retract scapula (pulls posteriorly)

- some head extension

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4
Q

lower trapezius action

A

-depress pectoral girdle

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5
Q

pectoralis major action

A
  • abducts arm (downward motion)

- arm flexion

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6
Q

latissimus dorsi action

A
  • arm adduction
  • arm abduction/extension
  • arm rotation internal/externally
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7
Q

teres major action

A
  • good for fine movement and stability

- works w/ latissimus dorsi but with less force

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8
Q

deltoid action

A
  • moves the humerus
  • anterior : flexes
  • lateral: abducts
  • posterior: extends
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9
Q

rotator cuff supraspinatus action

A

-first 15° of arm abduction

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10
Q

rotator cuff infraspinatus action

A
  • not powerful muscle

- adducts of arm

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11
Q

rotator cuff teres minor action

A
  • adduction of the arm

- not powerful muscle

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12
Q

rotator cuff subscapularis action

A

-internal rotation and adduction of arm

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13
Q

biceps brachii action

A

-flex forearm

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14
Q

brachialis action

A

-flex forearm

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15
Q

brachioradialis action

A
  • one of the reflex center

- flexes the forearm

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16
Q

triceps brachii action

A

-extensor of the forearm

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17
Q

supinator action

A

-supinates forearm

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18
Q

pronator teres action

A
  • rotates forearm

- pronates

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19
Q

pronator quadratus action

A
  • rotates forearm

- pronates

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20
Q

flexor carpi radialis action

A

-radial flexion

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21
Q

flexor carpi ulnaris action

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A

-ulnar flexion

22
Q

flexor digitorum superficialis action

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A

-flex the fingers (digits II-V)

23
Q

flexor digitorum profundus action

Study These Flashcards
A

-flex the fingers (digits II-V)

24
Q

flexor pollicis longus action

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A

-flexes the thumb

25
extensor carpi radialis longus action
- helps move hand - facilitates movement at wrist - involved in extending and abducting the hand at wrist
26
extensor carpi ulnaris action
-extends and adducts at the carpus/wrist from anatomical position
27
extensor digitorum action
-extends digits
28
thenar muscles action
-moves thumb
29
hypothenar muscles action
-moves pinkie
30
lumbricals action
- flex at metacarpophalangeal joint (II-V) | - extend interphalangeal joints (II-V)
31
dorsal interossei action
-abduct digits
32
palmar interossei action
-adduct digits
33
iliacus action
-flex the thigh at the hip
34
psoas major action
-share a common tendon
35
tensor fascia lata action
- abducts and flexes the thigh | - pulls it anteriorly and laterally
36
gluteus maximus action
-thigh extension
37
gluteus medius action
-abduct and internally rotate thigh
38
adductor magnus action
-adduct and internally rotate thigh
39
sartorius action
- crossing the leg - ->flexion at hip - ->flexion at knee - ->external rotation at hip
40
rectus femoris action
- extends the knee | - flexes the thigh at the hip
41
vastus lateralis action
- extends the knee joint | - moves the lower leg forward
42
vastus intermedius action
-extension of knee
43
vastus medialis action
- knee extension | - contributes to correct tracking of the patella
44
hamstrings group action
- flex the leg at the knee (opposite of the knee) | - extends thigh at the hip
45
tibialis anterior action
- dorsiflexion | - inversion
46
extensor digitorum longus action
-extends digits (II-V)
47
gastrocnemius action
- plantar flexes the foot at the ankle joint | - flexes the leg at the knee joint
48
soleus action
-plantar flexion of foot
49
tibialis posterior action
- invert and plantar flex - flex digits II-V - flex the hallux
50
flexor hallucis longus action
-flexes the hallux
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