Ventral Forearm and Wrist Flashcards

1
Q

Pronator Teres O

A

ulnar head: coronoid process of ulna

humeral head: medial epicondyle of humerus

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2
Q

pronator teres I

A

middle of convexity of lateral surface of radius

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3
Q

pronator teres innervation

A

median nerve (C6, C7)

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4
Q

pronator teres action

A

pronates and flexes forearm

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5
Q

flexor carpi radialis O

A

medial epicondyle of humerus

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6
Q

flexor carpi radialis insertion

A

base of 2nd (3rd) metacarpal

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7
Q

flexor carpi radialis innervation

A

median nerve (C6, C7)

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8
Q

flexor carpi radialis action

A

flexes and abducts hand at wrist

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9
Q

palmaris longus O

A

medial epicondyle of the humerus

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10
Q

palmaris longus I

A

distal half of flexor retinacula

palmar aponeurosis

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11
Q

palmaris longus innervation

A

median nerve (C7, C8)

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12
Q

palmaris longus action

A

flexes hand (at wrist) and tenses palmar aponeurosis

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13
Q

flexor digitorum superficialis O

A

humero-ulnar head: medial epicondyle of huemrus and coronois process of ulna

radial head: oblique line of radius

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14
Q

flexor digitorum superficialis I

A

shafts (bodies) of middle phalanges of medial four digits

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15
Q

flexor digitorum superficialis innervation

A

median nerve ( C7 - T1)

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16
Q

flexor digitorum superficialis action

A

flexes wrist joint

flexes proximal IP joint of middle four digits
also flexes proximal phalanges at metacarpophalangeal joints

17
Q

flexor carpi ulnaris (humeral head and ulnar head) O

A

olecranon and posterior border of ulna (via aponeurosis)

18
Q

flexor carpi ulnaris (humeral head and ulnar head) I

A

pisiform
hook of hamate
5th metacarpal

19
Q

flexor carpi ulnaris (humeral head and ulnar head) innervation

A

ulnar nerve (C7, C8)

20
Q

flexor carpi ulnaris (humeral head and ulnar head) action

A

flexes and adducts hand at wrist

21
Q

flexor pollicis longus O

A

anterior surface of radius and adjacent interosseous membrane

22
Q

flexor pollicis longus I

A

base of distal phalanx of thumb

23
Q

flexor pollicis longus Innervation

A

anterior interosseous nerve from median nerve (C8, T1)

24
Q

flexor pollicis longus action

A

flexes wrist

flexes metacarpophalangeal and interphalangeal joints of thumb

25
Q

flexor digitorum profundus O

A

proximal three quarters of medial and anterior surfaces of ulna and interosseous membrane

26
Q

flexor digitorum profundus I

A

bases of distal phalanges of 2nd-5th digits

27
Q

flexor digitorum profundus innervation

A

lateral part to digits 2 & 3: median nerve (C8 T1) (anterior interosseous branch)

medial part (to digits 4 and 5): ulnar nerve (C8 T1)

28
Q

flexor digitorum profundus action

A

flexes wrist joint

flexes distal interphalangeal joints of digits 2-5

assists with wrist flexion

29
Q

pronator quadrates O

A

distal quarter of anterior surface of ulna

30
Q

pronator quadrates I

A

distal quarter of anterior surface of radius

31
Q

pronator quadrates innervation

A

anterior interosseous nerve, from median nerve (C8, T1)

32
Q

pronator quadrates action

A

pronates forearm

deep fibers bind radius and ulna together