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Gross Anatomy 1 > Anterior Arm And Forearm Muscles > Flashcards

Anterior Arm And Forearm Muscles Flashcards

1
Q

What are the muscles of the anterior arm

A

Brachialis, Coracobrachialis, Biceps brachii

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2
Q

Biceps brachii has 2 parts of

A

Long and short head

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3
Q

Biceps brachii long head origin is

A

Supraglenoid tubercle of scapula

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4
Q

Biceps brachii short head origin is

A

Coracoid process

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5
Q

Biceps brachii insertion is

A

Radial tuberosity and fascia of bicipital aponeurosis

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6
Q

Biceps brachii action of

A

Flexion of elbow, supination of forearm

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7
Q

Biceps brachii short head action also

A

Resists shoulder dislocation

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8
Q

Biceps brachii innervation

A

Musculocutaneous n (C5C6

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9
Q

Biceps brachii vasculature

A

Brachial artery

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10
Q

Coracobrachialis origin

A

Coracoid process

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11
Q

Coracobrachialis insertion

A

Middle 1/3 of medial shaft of humerus

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12
Q

Coracobrachialis action

A

Helps flex and adductor arm. Resist shoulder dislocation

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13
Q

Coracobrachialis innervation

A

Musculocutaneous nerve C5C6

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14
Q

Coracobrachialis vasculature

A

Brachial artery

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15
Q

Brachialis origin

A

Distal 1/2 of anterior humerus

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16
Q

Brachialis insertion

A

Coronoid process and ulnar tuberosity

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17
Q

Brachialis action

A

Strongest flexor of elbow

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18
Q

Brachialis innervation (2)

A

Musculocutaneous nerve C5C6 and radial nerve C5C7

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19
Q

Brachialis vasculature

A

Brachial artery

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20
Q

Muscles of the anterior forearm superficial layer are

A

(PFPF) pronator Teres, flexor carpi radialis, palmaris longus, flexor carpi ulnaris

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21
Q

Pronator Teres origin

A

Ulnar: coronoid process
Humeral: medial epicondyle of humerus

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22
Q

Pronator Teres insertion

A

Lateral surface of radius

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23
Q

Pronator Teres action

A

Pronates and flexes forearm

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24
Q

Pronator Teres innervation

A

Median nerve C6C7

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25
Q

Pronator Teres vasculature

A

Ulnar and radial artery

26
Q

Flexor carpi radialis origin

A

Medial condyle of humerus

27
Q

Flexor carpi radialis insertion

A

Base of 2nd MC

28
Q

Flexor carpi radialis action

A

Flexion and radial deviation

29
Q

Flexor carpi radialis innervation

A

Median N C7C8

30
Q

Flexor carpi radialis vasculature

A

Ulnar artery

31
Q

Palmaris longus origin

A

Medial epicondyle of humerus

32
Q

Palmaris longus insertion

A

Distal flexor retinaculum and palmar aponeurosis

33
Q

Palmaris longus action

A

Flexion of writs and tenses palm

34
Q

Palmaris longus innervation

A

Median N C7C8

35
Q

Palmaris longus vasculature

A

Ulnar artery

36
Q

Flexor carpi ulnaris origin

A

Humeral: medial epicondyle of humerus
Ulnar: olecranon and posterior border of ulnar

37
Q

Flexor carpi ulnaris insertion

A

Pisiform, hook of hamate, 5th MC

38
Q

Flexor carpi ulnaris action

A

Flexes and ulnar deviation of wrist

39
Q

Flexor carpi ulnaris innervation (rebel)

A

Ulnar n C7C8

40
Q

Flexor carpi ulnaris vasculature

A

Ulnar artery

41
Q

Anterior forearm intermediate layer muscle

A

Flexor digitorum superficialis

42
Q

Flexor digitorum superficialis origin

A

Humeral-ulanar: medial epicondyle and coronoid process
radial: radius below radial tuberosity

43
Q

Flexor digitorum superficialis insertion

A

Sides of middle phalanges of medial 4 digits

44
Q

Flexor digitorum superficialis action

A

Flexion of PIP joints, stronger MCP joint flexion

45
Q

Flexor digitorum superficialis innervation

A

Median N C7-T1

46
Q

Flexor digitorum superficialis vasculature

A

Ulnar artery

47
Q

Anterior forearm deep muscles are

A

Flexor digitorum profundus, flexor pollicis longus, pronator quadratus

48
Q

Flexor digitorum profundus origin

A

proximal 3/4 of medial and anterior surface of ulna and IOM

49
Q

Flexor digitorum profundus insertion

A

Medial (ulnar); bases of distal 4th and 5th digit
Lateral (radial(; bases of distal 2nd and 3rd digit

50
Q

Flexor digitorum profundus action

A

Flexion at DIP

51
Q

Flexor digitorum profundus innervation

A

Medial (ulnar); ulnar n (C8, T1)
Lateral (radial); median n (C8-T1)

52
Q

Flexor digitorum profundus vasculature

A

Ulnar and anterior interosseous artery

53
Q

Flexor pollicis longus origin

A

Anterior surface of radius and IOM

54
Q

Flexor pollicis longus insertion

A

Base of distal phalanx of thumb

55
Q

Flexor pollicis longus action

A

Flexion of digit 1

56
Q

Flexor pollicis longus innervation

A

Median N C8-T1

57
Q

Flexor pollicis longus vasculature

A

Anterior interosseous artery

58
Q

Pronator quadratus origin

A

Distal 1/4 of anterior ulna

59
Q

Pronator quadratus insertion

A

Distal 1/4 of anterior radius

60
Q

Pronator quadratus action

A

Pronates forearm, binds radius and ulna together

61
Q

Pronator quadratus innervation

A

Median n C8-T1

62
Q

Pronator quadratus vasculature

A

Anterior interosseous artery

Gross Anatomy 1 (10 decks)

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