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Functional Anatomy > Practical 1 Muscle Actions > Flashcards

Practical 1 Muscle Actions Flashcards

1
Q

Anterior deltoid

A

flex, abduct, & internally rotate arm

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2
Q

Middle deltoid

A

abduct arm

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3
Q

Posterior deltoid

A

extend, abduct, externally rotate arm

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4
Q

Upper Trapezius

A

elevate & upward rotate scapula, extend and laterally flex head & neck to same side

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5
Q

Middle Trapezius

A

retract scapula

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6
Q

Lower Trapezius

A

upward rotate, retract, and depress scapula

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7
Q

Rhomboids

A

elevate, retract, and downward rotate scapula

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8
Q

Levator scapulae

A

elevate scapula

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9
Q

Supraspinatus

A

abduct arm

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10
Q

Infraspinatus

A

externally rotate arm

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11
Q

Teres major

A

adduct, extend, and internally rotate arm

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12
Q

Teres minor

A

external rotate arm & apply depression force during abduction

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13
Q

Serratus anterior

A

protract and upward rotate scapula

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14
Q

Subscapularis

A

internally rotate, slightly abduct arm, apply depression force during abduction

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15
Q

Latissimus dorsi

A

adduct, extend, internally rotate arm, depress scapula, elevate thorax & pelvis

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16
Q

Pec minor

A

moves scapula anterior & rotates glenoid fossa superior

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17
Q

Pec major- sternal fibers

A

adduct, internally rotate, and extend humerus

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18
Q

Pec major- clavicular fibers

A

adduct, internally rotate, and flex humerus

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19
Q

Coracobrachialis

A

flex and adduct arm

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20
Q

Biceps brachii

A

flex forearm

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21
Q

Triceps

A

extend forearm and adduct humerus

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22
Q

Brachialis

A

flex forearm

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23
Q

Brachioradialis

A

flex and rotate forearm

24
Q

Pronator teres

A

pronate and flex forearm

25
Q

Pronator quadratus

A

pronate forearm

26
Q

Supinator

A

supinate forearm

27
Q

Flexor carpi radialis

A

flex and abduct wrist, assist with elbow flexion

28
Q

Palmaris longus

A

flex wrist

29
Q

Flexor carpi ulnaris

A

adduct wrist

30
Q

Extensor carpi ulnaris

A

extend and adduct wrist

31
Q

Extensor carpi radialis longus

A

abduct wrist

32
Q

Extensor carpi radialis brevis

A

extend and abduct wrist

33
Q

Extensor digitorum

A

extend digits 2-5 at MCP, PIP, DIP

34
Q

Extensor pollicis brevis

A

extend MCP & CMC of thumb

35
Q

Extensor pollicis longus

A

extend IP thumb joint, assist with MCP & CMC joints

36
Q

Flexor digitorum superficialis

A

flex PIP of digits 2-5, assist in flexion of MCP & wrist

37
Q

Flexor digitorum profundus

A

flex DIP at digits 2-5, assist in flexion of PIP and MCP

38
Q

Abductor pollicis longus

A

abduct and extend CMC of thumb, assist with abduction and flexion of wrist

39
Q

Flexor pollicis longus

A

flex IP of thumb, assist with flexion of MCP

40
Q

Adductor pollicis

A

adduct thumb

41
Q

Abductor pollicis brevis

A

abduct CMC and MCP of thumb

42
Q

Abductor digiti minimi

A

abduct & flex MCP of 5th digit

43
Q

Dorsal interossei

A

abduct and flex MCP of digits 2-4, extend PIP & DIP of digits 2-4

44
Q

Palmar interossei

A

adduct and flex MCP of digits 2, 4, & 5, extend PIP & DIP of digits 2, 4, & 5

45
Q

Lumbricals

A

flex MCP of digits 2-5, extend PIP & DIP of digits 2-5

46
Q

Opponens pollicis

A

opposition of CMC of thumb

47
Q

SCM

A

bilateral flexion of head, unilateral lateral flexion and CL rotation of head

48
Q

Scalenes anterior

A

bilateral flexion and unilateral lateral flexion of C/S

49
Q

Scalenes medius

A

bilateral flexion and unilateral lateral flexion of C/S

50
Q

Scalenes posterior

A

bilateral flexion of head, unilateral lateral flexion and CL rotation of head

51
Q

Semispinalis capitus

A

bilateral extension and unilateral lateral flexion of head

52
Q

Multifidus

A

bilateral extension and unilateral lateral flexion of L/S, T/S, C/S, CL rotation of L/S

53
Q

Erector spinae

A

extend and laterally flex back, maintain correct posture

54
Q

Quadratus lumborum

A

bilateral extension and unilateral lateral flexion of L/S, hip hiking

55
Q

Rectus abdominus

A

bilateral flex of trunk, posterior pelvis tilt, & depress ribs, unilateral lateral flexion

56
Q

Internal oblique

A

bilateral flex of trunk, posterior pelvis tilt & increase thoracolumbar tension, unilateral lateral flexion and IL rotation of trunk, depress ribs

57
Q

External oblique

A

bilateral flex of trunk, posterior pelvis tilt, unilateral lateral flexion and CL rotation of trunk

Functional Anatomy (7 decks)

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