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Anatomical Kinesology > Wrist and Hand > Flashcards

Wrist and Hand Flashcards

1
Q

5 extrinsic wrist flexors

A

 Flexor carpi radialis
 Flexor carpi ulnaris
 Palmaris longus
 Flexor digitorum superficialis
 Flexor digitorum profundus

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2
Q

Flexor carpi radialis O and I

A

Origin = Medial epicondyle of the humerus
Insertion = Base of the 2nd and 3rd metacarpals

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3
Q

Concentric actions of the flexor carpi radialis

A

Wrist flexion and wrist radial deviation

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4
Q

Flexor carpi ulnaris O and I

A

Origin - Medial epicondyle of the humerus
* Insertion - Pisiform and Hook of the Hamate, base of the 5th metacarpal

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5
Q

Concentric actions of the flexor carpi ulnaris

A

Wrist flexion and ulnar deviation

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6
Q

Palmaris longus O and I

A

Origin - Medial epicondyle of the humerus
Insertion - Palmar aponeurosis

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7
Q

Concentric action of the palmaris longus

A

Wrist flexion

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8
Q

Flexor digitorum superficialis O and I

A

Origin - Medial epicondyle
Insertion- Sides of base of middle phalanx of 2nd – 5th fingers

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9
Q

Concentric actions of the flexor digitorum superficialis

A
  • Wrist flexion
  • 2nd – 5th finger MCP flexion
  • 2nd – 5th finger PIP flexion
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10
Q

Concentric actions of the flexor digitorum profundus

A
  • Wrist flexion
  • 2nd – 5th MCP flexion
  • 2nd – 5th PIP flexion
  • 2nd – 5th DIP flexion
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11
Q

6 extrinsic wrist extensors

A

 Extensor carpi radialis longus
 Extensor carpi radialis brevis
 Extensor carpi ulnaris
 Extensor digitorum
 Extensor digiti minimi
 Extensor indicis

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12
Q

O and I of Extensor Carpi Radialis Longus

A

Origin - Lateral supracondylar ridge of the humerus and the lateral epicondyle of the
humerus
Insertion - Base of the 2nd metacarpal

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13
Q

Concentric action of the extensor carpi radialis longus

A
  • Wrist extension
  • Wrist radial deviation (abduction)
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14
Q

O and I of the extensor carpi radialis brevis

A

O = lateral epicondyle
I = base of the 3rd metacarpal

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15
Q

Primary concentric action of the extensor carpi radialis brevis

A

Wrist extension
Wrist radial deviation

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16
Q

Extensor carpi ulnaris O and I

A

O = lateral epicondyle
I = base of 5th metacarpal

17
Q

Primary concentric actions of the extensor carpi ulnaris

A

Wrist extension
Ulnar deviation

18
Q

Extensor digitorum O and I

A

O = lateral epicondyle
I = base of the middle and distal phalanx of the 2nd-5th digits

19
Q

Primary concentric actions of the extensor digitorum

A

Wrist extension
2nd – 5th MCP extension
* 2nd – 5th PIP extension
* 2nd – 5th DIP extension

20
Q

O and I of the extensor digiti minimi

A

O = lateral epicondyle
I = base of the proximal phalanx of the 5th digit

21
Q

Concentric actions of the extensor digiti minimi

A

Wrist extension
5th MCP extension

22
Q

Concentric actions of the extensor indicis

A

Wrist extension
2nd MCP extension

23
Q

Concentric actions of the dorsal interossei

A

Abduction of MCP of 2nd-4th MCP digits

24
Q

Concentric action of the abductor digiti minimi

A

Abduction of MCP of 5th finger

25
Q

Concentric action of the palmar interossei

A

Adduction of MCP 2nd, 4th, 5th fingers

26
Q

Concentric actions of the extensor pollicis longus

A
  • 1st CMC extension
  • 1st MCP extension
  • 1st IP extension
27
Q

Concentric actions of the extensor pollicis brevis

A
  • 1st CMC extension
  • 1st MCP extension
28
Q

Concentric actions of the abductor pollicis longus

A
  • 1st CMC abduction
  • 1st CMC extension
29
Q

Concentric actions of the flexor pollicis longus

A
  • 1st CMC flexion
  • 1st MCP flexion
  • 1st IP flexion
30
Q

Concentric actions of the adductor policis

A

1st CMC adduction

31
Q

What are the tendons/bones that make up the anatomical snuff box, and what movement is required to see it?

A

Thumb extension
Medial (ulnar) border = Extensor pollicis longus tendon,
Lateral (radial) border - extensor pollicis brevis & abductor pollicis longus tendons
Floor = scaphoid

32
Q

How is the carpal tunnel formed?

A

The flexor retinaculum (transverse carpal ligament) forms a bridge over the carpal
bones which forms the carpal tunnel

33
Q

What is the contents of the carpal tunnel?

A

Flexor muscle tendons (9 tendons in total) and the median nerve travel
through the tunnel
* Median nerve
* 4 tendons of the flexor digitorum superficialis
* 4 tendons of the flexor digitorum profundus
* Flexor pollicis longus tendon

34
Q

What 3 muscles make up the thenar eminence

A
  • Abductor pollicis brevis
  • Flexor pollicis brevis
  • Opponens pollicis
35
Q

What 3 muscles make up the hypothenar eminence

A

Abductor digiti minimi
Flexor digiti minimi brevisOpponens digiti minimi

Anatomical Kinesology (15 decks)

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