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Anatomy > UE Muscle Chart > Flashcards

UE Muscle Chart Flashcards

1
Q

Trapezius
(actions, innervation)

A

Superior fibers: Elevate and superiorly rotate scapula
Middle fibers: retract scapula
Inferior fibers: depress scapula

Innervated by CNXI (accessory nerve)

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2
Q

Levator scapulae
(actions, insertion, innervation)

A

elevates and inferiorly rotates scapula
inserts: superior medial border of scapula
innervate: dorsal scapular nerve

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3
Q

Rhomboid major
(actions, insertion, innervation)

A

elevates, retracts, and inferiorly rotates scapula
insert: medial border of scapula
innervation: dorsal scapular nerve

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4
Q

Rhomboid minor
(actions, insertion, innervation)

A

elevates, retracts, and inferiorly rotates scapula
inserts: superior medial border of scapula
innervation: dorsal scapular nerve

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5
Q

Pectoralis minor
(actions, insertion, innervation)

A

protracts and depresses scapula
inserts: coracoid process of scapula
innervation: medial pectoral nerve

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6
Q

Serratus anterior
(actions, insertion, innervation)

A

protracts and superiorly rotates scapula; stabilizes scapula
inserts: anterior medial border of scapula
innervation: long thoracic nerve

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7
Q

Subclavius
(actions, innervation)

A

stabilizes and depresses clavicle
innervation: nerve to subclavius

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8
Q

Latissimus dorsi
(actions, insertion, innervation)

A

extends, adducts, medial rotates GH joint
insert: intertubercular groove of humerus
innervation: thoracodorsal nerve

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9
Q

Pectoralis major
(actions, insertion, innervation)

A

arm flexion; adduct and medially rotate GH joint
insert: intertubercular groove of humerus
innervation: lateral pectoral and medial pectoral nerves

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10
Q

deltoid
(actions, insertion, innervation)

A

anterior fibers: flex and medially rotate GH joint
middle fibers: GH abduction
posterior fibers: extend and laterally rotates GH joint
insert: deltoid tuberosity of humerus
innervation: axillary nerve

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11
Q

coracobrachialis
(actions, origin, insertion, innervation)

A

adduct and flexes GH joint
origin: coracoid process
insert: middle medial shaft of humerus
innervation: musculocutaneous nerve

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12
Q

teres major
(actions, origin, insertion, innervation)

A

extend, adduct, medially rotate GH joint
origin: inferior lateral border and inferior angle of scapula
insert: lesser tubercle and intertubercular groove of humerus
innervation: lower subscapular nerve

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13
Q

triceps brachii
(actions, origin, insertion, innervation)

A

extends GH joint
origin: infraglenoid tubercle
inserts: olecranon process
innervation: radial nerve

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14
Q

biceps brachii
(actions, origin, insertion, innervation)

A

flexes GH joint
origin: supraglenoid tubercle
insert: radial tuberosity and bicipital aponeurosis
innervation: musculocutaneous

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15
Q

Subscapularis
(actions, origin, insertion, innervation)

A

medially rotates GH joint, stabilizes GH joint
origin: subscapular fossa
insert: lesser tubercle of humerus
innervation: upper and lower subscapular nerve

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16
Q

Supraspinatus
(actions, origin, insertion, innervation)

A

abducts GH joint, stabilizes GH joint
origin: supraspinous fossa
insert: greater tubercle of humerus
innervation: suprascapular nerve

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17
Q

infraspinatus
(actions, origin, insertion, innervation)

A

adduct and laterally rotate GH joint, stabilize GH joint
origin: infraspinous fossa
insert: greater tubercle of humerus
innervation: suprascapular nerve

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18
Q

Teres minor
(actions, origin, insertion, innervation)

A

adducts and laterally rotates GH joint, stabilizes GH joint
origin: superior lateral border of scapula
insert: greater tubercle of humerus
innervation: axillary nerve

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19
Q

Biceps brachii
(actions, origin, insertion, innervation)

A

flex elbow, supinate forearm, long head flexes GH joint
origin: long head - supraglenoid tubercle of scapula, short head - coracoid process of scapula
insert: radial tuberosity and bicipital aponeurosis
innervation: musculocutaneous nerve

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20
Q

brachialis
(actions, innervation)

A

primary flexor of elbow
innervation: musculocutaneous

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21
Q

brachioradialis
(actions, insertion, innervation)

A

flexes elbow
insert: styloid process of radius
innervation: radial nerve

22
Q

triceps brachii
(actions, origin, insertion, innervation)

A

extend elbow, long head extends GH joint
origin: long head - infraglenoid tubercle of scapula
insert: olecranon process of ulna
innervation: radial nerve

23
Q

pronator teres
(actions, origin, innervation)

A

pronates forearm
origin: medial epicondyle of humerus
innervation: median nerve

24
Q

palmaris longus
(actions, origin, innervation)

A

wrist flexor
origin: medial epicondyle of humerus
innervation: median nerve

25
Q

flexor carpi radialis
(actions, origin, innervation)

A

flexes wrist and abducts hand
origin: medial epicondyle of humerus
innervation: median nerve

26
Q

flexor carpi ulnaris
(actions, origin, innervation)

A

flex wrist and adduct hand
origin: medial epicondyle of humerus
innervation: ulnar nerve

27
Q

flexor digitorum superficialis
(actions, origin, insertion, innervation)

A

flexes wrist, 2-5 MP joints, PIP joints
origin: medial epicondyle of humerus
insert: middle phalanges 2-5
innervation: median nerve

28
Q

flexor pollicis longus
(actions, insertion, innervation)

A

flex MP joint of thumb, IP joint of thumb
insert: distal phalanx of thumb
innervation: median nerve

29
Q

flexor digitorum profundus
(actions, insertion, innervation)

A

flexes wrist, 2-5 MP joint, PIP joints, DIP joints
insert: distal phalanges 2-5
lateral 1/2 - median nerve
medial 1/2 - ulnar nerve

30
Q

pronator quadratus
(actions, innervation)

A

pronates forearm
innervation: median nerve

31
Q

extensor carpi radialis longus
(actions, innervation)

A

extend wrist, abduct hand
innervation: radial

32
Q

extensor carpi radialis brevis
(actions, origin, innervation)

A

extend wrist, abduct hand
origin: lateral epicondyle of humerus
innervation: radial nerve

33
Q

extensor digitorum
(actions, origin, insert, innervation)

A

extend wrist, 2-5 MP joints, PIP joints, DIP joints
origin: lateral epicondyle of humerus
insert: 2-5 digits
innervation: radial nerve

34
Q

extensor digiti minimi
(actions, origin, insertion, innervation)

A

extend wrist, MP, POP joints of finger 5
origin: lateral epicondyle of humerus
insert: finger 5
innervation: radial nerve

35
Q

extensor carpi ulnaris
(actions, origin, innervation)

A

extend wrist, adduct hand
origin: lateral epicondyle of humerus
innervation: radial nerve

36
Q

abductor pollicis longus
(actions, innervation)

A

abduct thumb
innervation: radial nerve

37
Q

extensor pollicis brevis
(actions, insertion, innervation)

A

extend MP joint of thumb
insert: thumb
innervation: radial nerve

38
Q

extensor pollicis longus
(actions, insertion, innervation)

A

extend MP and IP joints of thumb
insert: thumb
innervation: radial nerve

39
Q

extensor indicis
(actions, insertion, innervation)

A

extend MP, PIP, and DIP joints of finger 2
insert: 2nd finger
innervation: radial nerve

40
Q

supinator
(actions, origin, innervation)

A

supinates forearm
origin: lateral epicondyle of humerus
innervation: radial nerve

41
Q

Flexor pollicis brevis
(actions, innervation)

A

flex thumb
median nerve

42
Q

abductor pollicis brevis
(actions, innervation)

A

abducts thumb
median nerve

43
Q

opponens pollicis
(actions, innervation)

A

opposes thumb
median nerve

44
Q

flexor digiti minimi brevis
(actions, innervation)

A

flexes finger 5
ulnar nerve

45
Q

abductor digiti minimi
(actions, innervation)

A

abducts finger 5
ulnar nerve

46
Q

opponens digiti minimi
(actions, innervation)

A

opposes finger 5
ulnar nerve

47
Q

lumbricals
(actions, innervation)

A

flex 2-5 MP joint, extend 2-5 PIP and DIP joints
lateral 2: median nerve
medial 2: ulnar nerve

48
Q

dorsal interossei
(actions, innervation)

A

abducts fingers 2-5
ulnar nerve

49
Q

palmar interossei
(actions, innervation)

A

adducts fingers 2-5
ulnar nerve

50
Q

adductor pollicis
(actions, innervation)

A

adduct thumb
ulnar nerve

Anatomy (2 decks)

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