Chp 10-Forearm Extensors Flashcards

1
Q

Forearm Extensors mm. (6)

A
  1. Ext. carpi radialis longus
  2. Ext. carpi radialis brevis
  3. ABductor pollicis longus
  4. Ext. carpi ulnaris
  5. Ext. digitorum
  6. Ext pollicis brevis & longus
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2
Q

Ext. carpi radialis longus - O =

A

O: lateral supracondylar ridge

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3
Q

Ext. carpi radialis longus - I =

A

I: metacarpal #2

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4
Q

Ext. carpi radialis longus - A =

A

A: extension w/ radial deviation

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5
Q

Ext. carpi radialis brevis - O =

A

O: lateral epicondyle

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6
Q

Ext. carpi radialis brevis - I =

A

I: metacarpal #2 & 3

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7
Q

Ext. carpi radialis brevis - A =

A

A: extension w/ radial deviation

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8
Q

ABductor pollicis longus - O =

A

O: posterior ulna, radius, interosseus membrane

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9
Q

ABductor pollicis longus - I =

A

I: metacarpal #1 & trapezium

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10
Q

ABductor pollicis longus - A =

A

A: ABduct thumb away from palm

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11
Q

Ext. carpi ulnaris - O =

A

O: lateral epicondyle

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12
Q

Ext. carpi ulnaris - I =

A

I: metacarpal #5

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13
Q

Ext. carpi ulnaris - A =

A

A: extend wrist

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14
Q

Ext. digitorum - O =

A

O: lateral epicondyle

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15
Q

Ext. digitorum - I =

A

I: digits (extension hood)

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16
Q

Ext. digitorum - A =

A

A: extend fingers

17
Q

Ext. pollicis brevis & longus - O =

A

O: posterior radius, ulna & interosseus membrane

18
Q

Ext. pollicis brevis & longus - I =

A

I: proximal thumb phalanx (brevis), distal thumb phalanx (longus)

19
Q

Ext. pollicis brevis & longus - A =

A

A: extends thumb