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MSAK 2 - Forearm & Hand > Deep Distal 4 > Flashcards

Deep Distal 4 Flashcards

1
Q

Abductor pollicis longus - origin

A
  1. Middle 1/3 of posterior radius
  2. Ulna
  3. Interosseous membrane
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2
Q

Abductor pollicis longus - insertion

A

Lateral side of base of 1st metacarpal

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3
Q

Abductor pollicis longus - actions

A
  1. Abduction of the thumb at CMC joint
  2. Extension of thumb at CMC joint
  3. Lateral rotation of thumb at CMC joint
  4. Radial deviation of hand at wrist joint
  5. Flexion of hand at wrist joint
  6. Supination of forearm at radioulnar joint
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4
Q

Abductor pollicis lonus - innervation

A

Radial nerve

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5
Q

Abductor pollicis longus - arterial supply

A

Posterior interosseous artery

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6
Q

Extensor pollicis brevis - origin

A
  1. Distal 1/3 of posterior radius

2. Interosseous membrane

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7
Q

Extensor pollicis brevis - insertion

A

Posterolateral base of proximal phalanx of thumb

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8
Q

Extensor pollicis brevis - actions

A
  1. Extension of thumb at CMC and MCP joints
  2. Aduction of thumb at CMC joint
  3. Lateral rotation of thumb at CMC joint
  4. Radial deviation of hand at wrist joint
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9
Q

Extensor pollicis brevis - innervation

A

Radial nerve

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10
Q

Extensor pollicis brevis - arterial supply

A

Posterior interosseous artery

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11
Q

Extensor pollicis longus - origin

A
  1. Middle 1/3 of posterior ulna

2. Interosseous membrane

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12
Q

Extensor pollicis longus - insertion

A

Posterior surface of distal phalanc of thumb via. Dorsal digital expansion

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13
Q

Extensor pollicis longus - actions

A
  1. Extension of thumb at CMC, MCP and IP joints
  2. Lateral rotation of thumb at CMC joint
  3. Adduction of thumb at CMC joint
  4. Extension of hand at wrist joint
  5. Radial deviation of hand at wrist joint
  6. Supination of forearm at radioulnar joint
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14
Q

Extensor pollicis longus - innervation

A

Radial nerve

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15
Q

Extensor pollicis longus - arterial supply

A

Posterior interosseous artery

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16
Q

Extensor indicis - origin

A

Distal 1/3 of posterior ulna and interosseous membrane

17
Q

Extensor indicis - insertion

A

Ulnar side of tendon of ED to posterior surface of middle and distal phalanges of index finger via dorsal digital expansion

18
Q

Extensor indicis - actions

A
  1. Extension of index finger at MCP, PIP and DIP joint
  2. Extension of hand at wrist joint
  3. Adduction of index finger at MCP joint
  4. Supination of forearm at radioulnar joint
19
Q

Extensor indicis - innervation

A

Radial nerve

20
Q

Extensor indicis - arterial supply

A

Posterior interosseous artery

MSAK 2 - Forearm & Hand (4 decks)

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