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(Physio) Muscles Anatomy and Action > Upper Body- Muscle Actions > Flashcards

Upper Body- Muscle Actions Flashcards

1
Q

What is the action of abductor digiti minimi (hand)

A

abducts the 5th digit

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2
Q

What is the action of trapezius

A

elevates and depresses the scapula (depending on which part of the muscle contracts); rotates the scapula superiorly; retracts scapula

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3
Q

What is the action of palmaris brevis

A

draws the skin of the ulnar side of the hand toward the center of the palm

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4
Q

What is the action of pronator quadratus

A

pronates the forearm

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5
Q

What is the action of extensor indicis

A

extends the index finger at the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints

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6
Q

What is the action of abductor pollicis brevis

A

abducts thumb

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7
Q

What is the action of brachioradialis

A

flexes the elbow, assists in pronation & supination

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8
Q

What is the action of serratus anterior

A

it draws the scapula forward; the inferior fibers rotate the scapula superiorly

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9
Q

What is the action of extensor digitorum

A

extends the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints of the 2nd-5th digits; extends wrist

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10
Q

What is the action of extensor digiti minimi

A

extends the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints of the 5th digit

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11
Q

What is the action of extensor pollicis longus

A

extends the thumb at the interphalangeal joint

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12
Q

What is the action of supraspinatus

A

abducts the arm

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13
Q

What is the action of opponens digiti minimi

A

opposes the 5th digit

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14
Q

What is the action of deltoid

A

abducts arm; anterior fibers flex & medially rotate the arm; posterior fibers extend & laterally rotate the arm

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15
Q

What is the action of pectoralis minor

A

draws the scapula forward, medialward, and downward

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16
Q

What is the action of infraspinatus

A

laterally rotates the arm

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17
Q

What is the action of flexor pollicis brevis

A

flexes the carpometacarpal and metacarpophalangeal joints of the thumb

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18
Q

What is the action of brachialis

A

flexes the forearm

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19
Q

What is the action of flexor pollicis longus

A

flexes the metacarpophalangeal and interphalangeal joints of the thumb

20
Q

What is the action of pectoralis major

A

flexes and adducts the arm, medially rotates the arm

21
Q

What is the action of rhomboideus major

A

retracts, elevates and rotates the scapula inferiorly

22
Q

What is the action of supinator

A

supinates the forearm

23
Q

What is the action of flexor digitorum profundus

A

flexes the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints

24
Q

What is the action of extensor carpi radialis longus

A

extends the wrist; abducts the hand

25
Q

What is the action of flexor carpi ulnaris

A

flexes wrist, adducts hand

26
Q

What is the action of subscapularis

A

medially rotates the arm; assists extention of the arm

27
Q

What is the action of rhomboideus minor

A

retracts, elevates and rotates the scapula inferiorly

28
Q

What is the action of flexor digitorum superficialis

A

flexes the metacarpophalangeal and proximal interphalangeal joints

29
Q

What is the action of teres minor

A

laterally rotates the arm

30
Q

What is the action of palmaris longus

A

flexes the wrist

31
Q

What is the action of teres major

A

adducts the arm, medially rotates the arm, assists in arm extension

32
Q

What is the action of abductor pollicis longus

A

abducts thumb at carpometacarpal joint

33
Q

What is the action of triceps brachii

A

extends the forearm; the long head extends and adducts arm

34
Q

What is the action of flexor carpi radialis

A

flexes the wrist, abducts the hand

35
Q

What is the action of pronator teres

A

pronates the forearm

36
Q

What is the action of biceps brachii

A

flexes the forearm, flexes arm (long head), supinates

37
Q

What is the action of coracobrachialis

A

flexes and adducts the arm

38
Q

What is the action of levator scapulae

A

elevates the scapula

39
Q

What is the action of extensor carpi radialis brevis

A

extends the wrist; abducts the hand

40
Q

What is the action of extensor carpi ulnaris

A

extends the wrist; abducts the hand

41
Q

What is the action of anconeus

A

extends the forearm

42
Q

What is the action of subclavius

A

draws the clavicle (and hence the shoulder) down and forward

43
Q

What is the action of adductor pollicis

A

adducts the thumb

44
Q

What is the action of opponens pollicis

A

opposes the thumb

45
Q

What is the action of extensor pollicis brevis

A

extends the thumb at the metacarpophalangeal joint

46
Q

What is the action of latissimus dorsi

A

extends the arm and rotates the arm medially

47
Q

What is the action of flexor digiti minimi brevis (hand)

A

flexes the carpometacarpal and metacarpophalangeal joints of the 5th digit

(Physio) Muscles Anatomy and Action (9 decks)

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