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Human Anatomy > Forearm Extensor OINA > Flashcards

Forearm Extensor OINA Flashcards

1
Q

Extensor Carpi Radialis Longus

A

O: lateral supra-epicondylar ridge of humerus
I: base of second metacarpal
N: radial N. (C6-7)
A: extends wrist and radially deviates hand

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2
Q

Extensor Carpi Ulnaris

A

O: lateral epicondyle
I: base of 5th metacarpal
N: deep radial n. (C7-C8)
A: extends wrist and ulnar deviation

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3
Q

Extensor Carpi Radialis Brevis

A

O: lateral epicondyle
I: base of the 3rd metacarpal
N: deep radial n. (C7-C8)
A: extends and radially deviates hand

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4
Q

Extensor Digitorum Communis

A

O: lateral epicondyle
I: extensor expansion
N: deep radial n (C7-C8)
A: extends digits 2-5

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5
Q

Extensor Digiti Minimi

A

O: ulnar side of extensor digitorum
I: extensor expansion of digit 5
N: posterior interosseus n. (C7-C8)
A: extends 5th digit

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6
Q

Abductor Pollicis Longus (APL)

A

O: posterior surface of mid ulna, radius, and interosseous membrane
I: base of 1st metacarpal
N: posterior interosseous n. (C7-C8)
A: abducts thumb and extends at CMC jt

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7
Q

Extensor Pollicis Brevis (EPB)

A

O: middle 1/3 os posterior surface of the radius and interosseous membrane
I: base of proximal phalanx of thumb
N: posterior interosseous n. (C7-C8)
A: extends proximal phalanx of thumb and extends CMC joint

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8
Q

Extensor Pollicis Longus (EPL)

A

O: middle 1/3 posterior surface of ulna and interosseous membrane
I: base of distal phalanx of thumb
N: posterior interosseous n (C7-C8)
A: extends thumb

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9
Q

Extensor Indicis

A

O: posterior surface of ulna and interosseous membrane
I: extensor digitorum tendon of finger
N: posterior interosseous n. (C7-C8)
A: extends index finger

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10
Q

What extensor tendons are in the 1st dorsal compartment?

A

APL (abductor pollicis longus) and EPB (extensor pollicis brevis)

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11
Q

What extensor tendons are in the 2nd dorsal compartment?

A

ECRL and ECRB (extensor carpi radialis longus and brevis

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12
Q

What extensor tendons are in the 3rd dorsal compartment?

A

EPL (extensor pollicis longus)

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13
Q

What extensor tendons are in the 4thExtensor Indicis and Extensor Communis dorsal compartment?

A

Extensor Indicis and Extensor Communis

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14
Q

What extensor tendons are in the 5th dorsal compartment?

A

Extensor Digiti Minimi

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15
Q

What extensor tendons are in the 6th dorsal compartment

A

Extensor Carpi Ulnaris (ECU)

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Human Anatomy (6 decks)

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