Forearm Flashcards

1
Q

Flexor digitorum profundus origin

A

Anterior and medial surfaces of the proximal 3/4 of the ulna.

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2
Q

Flexor digitorum profundus insertion

A

Bases of the distal phalanges, palmar surface and second through fifth fingers.

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3
Q

Flexor digitorum profundus actions

A

Flex the second through fifth fingers. Assist to flex the wrist.

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4
Q

Flexor digitorum profundus innervation

A

Median - second and third fingers. Ulnar - fourth and fifth fingers

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5
Q

Flexor digitorum superficialis origin

A

Common flexor tendon from the medial epicondyle of the humerus, the collateral ligament, coronoid process of the ulna, the interosseous membrane and the proximal shaft of the radius.

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6
Q

Flexor digitorum superficialis insertion

A

Sides of the middle phalanges of the second through fifth fingers.

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7
Q

Flexor digitorum superficialis actions

A

Flex the second through fifth fingers

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8
Q

Flexor digitorum superficialis innervation

A

Median

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9
Q

Which joints can the fingers flex at?

A

Metacarpophalangeal and proximal and distal interphalangeal joints

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10
Q

Flexor carpi ulnaris origin

A

Humeral head - Common flexor tendon from the medial epicondyle of the humerus
Ulnar head - Posterior surface of the proximal 2/3 of the ulna

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11
Q

Flexor carpi ulnaris insertion

A

Pisiform, hook of the hamate and the base of the fifth metacarpal

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12
Q

Flexor carpi ulnaris actions

A

Flex and adduct the wrist at the radiocarpal joint, assist to flex the elbow.

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13
Q

Flexor carpi ulnaris innervation

A

Ulnar nerve

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14
Q

Palmaris longus origin

A

Common flexor tendon from the medial epicondyle of the humerus.

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15
Q

Palmaris longus insertion

A

Flexor retinaculum and the palmar aponeurosis

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16
Q

Palmaris longus actions

A

Tense the palmar fascia, flex the wrist at the radiocarpal joint, may assist to flex the elbow.

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17
Q

Palmaris longus innervation

A

Median nerve

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18
Q

Flexor carpi radialis origin

A

Common flexor tendon from medial epicondyle of the humerus

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19
Q

Flexor carpi radialis insertion

A

Bases of second and third metacarpals

20
Q

Flexor carpi radialis actions

A

Flex and abduct the wrist at the radiocarpal joint. May assist to flex the elbow.

21
Q

Flexor carpi radialis innervation

A

Median nerve

22
Q

Extensor indicis origin

A

Posterior surface of the distal shaft of the ulna and the interosseous membrane.

23
Q

Extensor indicis insertion

A

Tendon of the extensor digitorum at the level of the second metacarpal

24
Q

Extensor indicis actions

A

Extend and adduct the second finger. Mas assist to extend the wrist.

25
Q

Extensor indicis innervation

A

Radial nerve

26
Q

Extensor digitorum origin

A

Common extensor tendon from the lateral epicondyle of humerus

27
Q

Extensor digitorum insertion

A

Bases of middle and distal phalanges of the second through fifth fingers.

28
Q

Extensor digitorum actions

A

Extend the second through fifth fingers. Assist to extend the wrist.

29
Q

Extensor digitorum innervation

A

Radial

30
Q

Extensor carpi ulnaris origin

A

Common extensor tendon from the lateral epicondyle of the humerus

31
Q

Extensor carpi ulnaris insertion

A

Base of the fifth metacarpal

32
Q

Extensor carpi ulnaris actions

A

Extend and adduct the wrist at the radiocarpal joint.

33
Q

Extensor carpi ulnaris innervation

A

Radial nerve

34
Q

Extensor carpi radialis brevis origin

A

Common extensor tendon from the lateral epicondyle of the humerus

35
Q

Extensor carpi radialis brevis insertion

A

Base of the third metatarsal

36
Q

Extensor carpi radialis brevis actions

A

Extend and abduct the wrist, assist to flex the elbow.

37
Q

Extensor carpi radialis brevis innervation

A

Radial nerve

38
Q

Extensor carpi radialis longus origin

A

Distal third of the lateral supracondylar ridge of the humerus

39
Q

Extensor carpi radialis longus insertion

A

Base of the second metacarpal

40
Q

Extensor carpi radialis longus actions

A

Extend and abduct the wrist, assist to flex the elbow.

41
Q

Extensor carpi radialis longus innervation

A

Radial nerve

42
Q

Brachialis origin

A

Distal half of the anterior surface of the humerus

43
Q

Brachialis insertion

A

Tuberosity and coronoid process of the ulna.

44
Q

Brachialis actions

A

Flex the elbow

45
Q

Brachialis innervation

A

Musculocutaneous and a small branch from the radial nerve.