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Block 1 > Muscle Actions > Flashcards

Muscle Actions Flashcards

1
Q

Trapezius

A

Elevate, depress, retract scapula

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2
Q

Levator scapulae

A

Retract, elevate scapula

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3
Q

Rhomboid major

A

Retract scapula

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4
Q

Rhomboid minor

A

Retract scapula

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5
Q

Latissimus dorsi

A

Adduct arm, medially rotate

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6
Q

Serratus anterior

A

90 degree + abduction with trapezius
Protract scapula (scapula away from spine)

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7
Q

Splenius capitis

A

Move vertebral column, extend neck

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8
Q

Splenius cervicis

A

Move vertebral column, extend neck

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9
Q

Deep back muscles (errector spinae and transversospinalis)

A

Move vertebral column

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10
Q

supraspinatus

A

*greater tubercle
0-15 degree abduction
Lateral rotation of arm

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11
Q

Infraspinatus

A

*greater tubercle
Lateral rotation of arm

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12
Q

Teres minor

A

*greater tubercle
Lateral rotation of arm

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13
Q

Subscapularis

A

*lesser tubercle
Medial rotation of shoulder

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14
Q

Subclavius

A

Steadies clavicle

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15
Q

Deltoid

A

Intermediate fibers: 15-90 degree abduction
Posterior fibers: extend arm
Anterior fibers: flex arm

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16
Q

Teres major

A

Adducts, extends, medially rotates humerus

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17
Q

Biceps brachii

A

All: flex, supinate forearm
LH: also flexes, ABDUCTS, medially rotates humerus

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18
Q

Brachialis

A

Flexes forearm, mobilizer of elbow

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19
Q

Coracobrachialis

A

Flexes arm, weak adductor

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20
Q

Brachioradialis

A

Flexes forearm, stabilizer of elbow

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21
Q

Extensor carpi radialis longus and brevis

A

Extend and abduct wrist

22
Q

Extensor digitorum

A

Extend wrist and fingers

23
Q

Extensor carpi ulnaris

A

Extend and adduct wrist

24
Q

Supinator

A

Supinates forearm

25
Q

Abductor pollicis longus

A

Abduct and extend thumb at CMC joint

26
Q

Extensor pollicis brevis

A

Extend wrist and thumb at MCP

27
Q

Extensor pollicis longus

A

Extend wrist and thumb at MCP and all IP joints

28
Q

Extensor indicis

A

Extend 2nd digit

29
Q

Extensor digiti minimi

A

Extends wrist and 5th digit

30
Q

Flexor carpi radialis

A

Flex wrist, ABDUCT hand

31
Q

Pronator teres

A

Pronate and flex forearm

32
Q

Palmaris longus

A

Flex wrist and tense palmar aponeurosis

33
Q

Flexor digitorum superificalis

A

Flex wrist, int, and prox, phalanges

34
Q

Flexor carpi ulnaris

A

Flex wrist and ADDUCT hand

35
Q

Flexor digitorum profundus

A

Flex wrist, prox, int, and distal phalanges

36
Q

Pronator quadratus

A

Pronates hand

37
Q

Flexor pollicis longus

A

Flex wrist, prox and dist phalanges of pollex

38
Q

Pectoralis major

A

Adducts and medially rotates arm

39
Q

Pectoralis minor

A

Protracts scapula (scapula away from spine)

40
Q

Abductor pollicis brevis

A

Abduct pollex

41
Q

Flexor pollicis brevis

A

Flex pollex, medially rotates 1st MCP

42
Q

Opponens pollicis

A

Opposes thumb

43
Q

Opponens digiti minimi

A

Flex and laterally rotates 5th MCP join

44
Q

Flexor digiti minimi

A

Flex 5th digit at MCP joint

45
Q

Abductor digiti minimi

A

Abduct 5th digit

46
Q

Lumbricals

A

Flex MCP joint / extend IP joints

47
Q

Palmar interosseus

A

PAD
Adduct fingers, flex MCP, extend IP

48
Q

Dorsal interosseus

A

DAB
Abduct fingers, flex MCP, extend IP

49
Q

External intercostal muscle

A

Elevates ribs during forced inspiration

50
Q

Internal and innermost intercostal muscles

A

Depress ribs during forced expiration

51
Q

Transversus thoracis muscle

A

Depresses ribs during forced expiration

Block 1 (2 decks)

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