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CABS > Muscle Actions > Flashcards

Muscle Actions Flashcards

1
Q

Sartorius

A

External rotation of hip, flexion of leg, sitting cross legged

Femoral nerve

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2
Q

Adductor Longus muscle

A

Adducts the thigh

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3
Q

Rectus femoris

A

Weak flexor of hip, extension of leg

Femoral nerve

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4
Q

Vastus Lateralis

A

Extension of leg

Femoral nerve

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5
Q

Vastus medialis

A

Extension of leg

Femoral nerve

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6
Q

Vastus intermedius

A

Extension of leg

Femoral nerve

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7
Q

Articulate muscle of the knee

A

Prevents pinching of suprapatellar bursa

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8
Q

Adductor Longus

A

Adducts thigh

Obturator nerve

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9
Q

Adductor Brevis

A

Adducts the thigh

Obturator nerve

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10
Q

Adductor magnus

A

Adducts the thigh, extends the thigh

Obturator nerve

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11
Q

Gracilis muscle

A

Adduction of thigh and flexion of leg

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12
Q

Tensor fascia lata

A

Flexes hip and stabilizes thigh on leg

Superior gluteal nerve

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13
Q

Iliopsoas

A

Flexes hip

Femoral nerve

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14
Q

Piriformis muscle

A

Laterally rotates and stabilizes hip

Piriformis nerve

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15
Q

Biceps femoris

A

Extend thigh and flex knee

Tibial branch of sciatic nerve

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16
Q

Semimembranosus

A

Extends thigh, flexes knee

Tibial branch of sciatic nerve

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17
Q

Semitendinosus

A

Extend thigh, flex knee

Tibial nerve branch of sciatic nerve

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18
Q

Gluteus medius

A

Abducts thigh, stabilizes hip when we walk

Superior gluteal nerve

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19
Q

Gluteus minimus

A

Hip abduction, stabilize pelvis when we walk

Superior gluteal nerve

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20
Q

Gluteus Maximus

A

Extends thigh

Interior gluteal nerve

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21
Q

What does the pudendal nerve innervate?

A

External anal and urethral sphincters “S2, 3, and 4 keep the poop and pee off the floor)

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22
Q

Pelvic splanchnic nerves

A

Autonomic regulation of bladder, bowel function

Sexual response

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23
Q

Politeus

A

Unlocks knee to initiate flexion

Tibial nerve

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24
Q

Plantaris

A

Weak flexor of leg, proprioception

Tibial nerve

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25
Q

Fibularis longus and brevis

A

Evert the foot and assist in plantar flexion

Superficial fibular nerve

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26
Q

Tibialis anterior
Extensor hallucinate longus
Extensor digitorum longus
Fibularis tertius

A

Dorsiflex and invert the foot

Deep fibular nerve

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27
Q

Flexor hallucis longus

A

Flexes distal phalanx of great toe

Tibial nerve

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28
Q

Flexor digitorum longus

A

Flexes distal phalanges of lateral 4 toes

Tibial nerve

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29
Q

Tibialis posterior

A

Inverts the foot

Tibial nerve

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30
Q

Supraspinatus

A

Abducts arm

Suprascapular nerve

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31
Q

Infraspinatus

A

External rotation of arm

Suprascapular nerve

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32
Q

Teres minor

A

External rotation

Axillary nerve

33
Q

Deltoid

A

Anterior fiber - flex arm
Middle fibers -abduct arm
Posterior fibers - extend arm

Axillary nerve

34
Q

Biceps brachii

A

Forearm flexion

Musculocutaneous nerve

35
Q

Brachialis

A

Strongest forearm flexor

Musculocutaenous nerve

36
Q

Coracobrachialis

A

Flexion and Adduction of arm

Musculocutenous nerve

37
Q

Triceps brachii

A

Extension of forearm

Radial nerve

38
Q

Brachioradialis

A

Flexes forearm in mid-prone position

Radial nerve

39
Q

Extensor Carpi Radialis longus

A

Radial deviation of wrist

Radial nerve

40
Q

Extensor Carpi Radialis brevis

A

Radial deviation of wrist

Radial nerve

41
Q

Extensor digitorum

A

Extends digits 2-5 at MCP joints, extends wrist

Radial nerve

42
Q

Extensor digiti minimi

A

Extends pinky finger

Radial nerve

43
Q

Extensor Carpi Ulnaris

A

Ulnar deviation at wrist

Ulnar nerve

44
Q

Abductor pollicis longus

A

Abducts thumb

Radial nerve

45
Q

Extensor pollicis brevis

A

Extends thumb

Radial nerve

46
Q

Extensor pollicis longus

A

Extends thumb

Radial nerve

47
Q

Extensor Indicis

A

Extends pointer finger

48
Q

Thenar muscles

A

Abductor pollicis brevis
Flexor pollicis brevis
Opponens pollicis

49
Q

Abductor pollicis brevis

A

Abducts thumb

Median nerve

50
Q

Flexor pollicis brevis

A

Flexes thumb at MCP

Median nerve

51
Q

Opponens pollicis

A

Opposes thumb

Median nerve

52
Q

1st and 2nd lumbricals

A

Flex MCP, extend DIP, PIP

Median nerve

53
Q

Pronator Teres

A

Pronates forearm

Median nerve

54
Q

Flexor Carpi Radialis

A

Flexes wrist at radial side, slight radial deviation

Median nerve

55
Q

Palmaris longus

A

Weak flexor of wrist

Median nerve

56
Q

Flexor digitorum profundus

A

Flexes wrist, MCP, PIP/DIP

Median nerve AND ulnar nerve

57
Q

Flexor pollicis longus

A

Flexes thumb, PIP joint in thumb

Median nerve

58
Q

Pronator Quadratus

A

Pronation

Median nerve

59
Q

Flexor Carpi Ulnaris

A

Flexes wrist at ulnar side, slight ulnar deviation

Ulnar nerve

60
Q

Intrinsic muscles of the hand

A

Adductor pollicis
3rd and 4th lumbricals
Interossei

61
Q

3rd and 4th lumbricals

A

Flex MCP, extend DIP/PIP

Ulnar nerve

62
Q

Adductor pollicis

A

Adducts thumb

Ulnar nerve

63
Q

Palmar interossei

A

Adducts fingers

Ulnar nerve

64
Q

Dorsal interossei

A

Abduct fingers

Ulnar nerve

65
Q

Serratus Anterior

A 
Rotates scapula 
Protracted scapula (giving yourself a hug)

Long thoracic nerve

66
Q

Latissimus Dorsi

A

Extension of arm, lat pull downs, rows

Thoracodorsal nerve

67
Q

Rhomboid major and minor

A

Retracts scapula, rotates scapula (brings shoulder blades closer together)

Dorsal scapular

68
Q

Trapezius

A

Superior fibers - elevates scapula, rotates scapula
Middle fibers - retracts scapula
Inferior fibers - depresses scapula, rotates scapula

Accessory nerve

69
Q

Which superficial back muscles aid in respiration

A

Trapezius, latissimus dorsi
Rhomboid major and minor
Levator scapulae
Serratus posterior superior and inferior

70
Q

What are they 2 true back muscle groups?

A
  1. Erector spinae

2. Transversospinalis group

71
Q

Erector spinae group

A

Spinalis, longisimus, iliocostalis

72
Q

Spinalis

A

Keeps spine erect, extension of spin

73
Q

Iliocostalis

A

Bilaterally - extension

Unilateral - lateral flexion

74
Q

Longisimus

A

Bilateral - extension

Unilateral - lateral flexion

75
Q

Transversospinalis group

A

Semispinalis
Multifidus
Rotatores

76
Q

Semispinalis

A

Extension and lateral flexion of spine

77
Q

Multifidus

A

Stabilizes spine

78
Q

Rotatores

A

Rotates the vertebrae

79
Q

Borders of little triangle of auscultation

A

Trapezius, latissimus dorsi, Teres major

CABS (5 decks)

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