Extensors of the wrist and digits Flashcards

1
Q

Origin of Flexor carpi radialis?

A

Medial epicondyle

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2
Q

Insertion of flexor carpi radialis?

A

Dorsal surface of the base of metacarpal II

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3
Q

Action of flexor carpi radialis?

A

Extends and abducts the wrist

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4
Q

Origin Extensor carpi radialis Brevis?

A

Lateral epicondyle

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5
Q

Insertion of extensor carpi radialis brevis?

A

Dorsal surface of metacarpal II and III

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6
Q

Action of extensor carpi radialis brevis?

A

Extends and abducts the wrist

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7
Q

Origin of extensor digitorum?

A

Lateral epicondyle and deep fascia

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8
Q

Insertion of extensor digitorum?

A

4 tendons insert via extensor hoods into bases of dorsal aspects of middle and distal phalanges of 2-5 (tendons under the retinaculum)

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9
Q

Action of extensor digitorum?

A

Extends digits 2-5 and extends wrist

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10
Q

Innervation of extensor digitorum, specifically?

A

Posterior interosseous branch of radial nerve (C7)

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11
Q

origin of Extensor digiti minimi?

A

lateral epicondyle

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12
Q

Insertion of extensor digiti minimi?

A

Extensor hood of the 5th digit

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13
Q

Innervation of the extensore digiti minimi specifically?

A

Posterior interosseous nerve of radial

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14
Q

Origin of Extensor carpi ulnaris?

A

Lateral epicondyle and posterior border of ulna

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15
Q

Insertion of extensor carpi radialis?

A

Tubercle on base of medial side of digit 5!

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16
Q

Origin of anconeus?

A

Lateral epicondyle

17
Q

Insertion of anconeus?

A

olecranon and proximal posterior surface of the ulna

18
Q

Action of anconeus?

A

Accessory extensor of the elbow, abduction of the ulna in pronation