Posterior Forearm and Dorsum of Hand Flashcards by Adaugo C

Q

Brachioradialis

A

Proximal: Supra-epicondylar ridge of humerus

Distal: Styloid process of radius

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Q

Action Brachioradialis

A

Flexes forearm when mid-pronated

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Q

Innervation Brachialradialis

A

Radial nerve

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Q

Extensor carpi radialis longus

A

Proximal: Supra-condylar ridge of humerus

Distal: Base of 2nd metacarpal

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Q

Action of Extensor carpi radialis longus

A

Extends and abducts wrists

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Q

Innervations of Extensor carpi radialis longus

A

Radial nerve

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Q

Extensor carpi radialis brevis

A

Proximal: Lateral epicondyle of humerus

Distal: Base of 3rd metacarpal

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Q

Actions of Extensor carpi radialis brevis

A

Extends and abducts wrists

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Q

Innervations of Extensor carpi radialis brevis

A

Radial n.

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Q

Extensor digitorium

A

Proximal: Lateral epicondyle of the humerus

Distal: Extensor expansions digits 2-5

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Q

Actions of Extensor digitorium

A

Extends digits 2-5

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Q

Innervation of Extensor digitorium

A

Radial n

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Q

Extensor digiti minimi

A

Proximal: Lateral epicondyle of humerus

Distal: Extensor expansion digit 5

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Q

Actions of Extensor digiti minimi

A

Extends digit 5

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Q

Innervation of Extensor digiti minimi

A

Radial n.

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Q

Extensor carpi ulnaris

A

Proximal: Lateral epicondyle of humerus

Distal: Base of 5th metacarpal

Q

Action of Extensor carpi ulnaris

A

Extends and adducts wrists

Q

Innervation of Extensor carpi ulnaris

A

Radial n.

Q

Supinator

A

Proximal: Lateral epicondyle

Distal: Proximal radius

Q

Actions of Supinator

A

Supinates arm

Q

Innervation of Supinator

A

Radial n.

Q

Abductor pollicis longus

A

Proximal: Posterior surfaces of radius and ulna

Distal: Base of 1st metacarpal

Q

Actions of Abductor pollicis longus

A

Abducts CMC of thumb

Q

Innercations of Abductor pollicis longus

A

Radial n.

Q

Extensor pollics brevis

A

Proximal: Posterior surfaces radius and ulna

Distal: Proximal phalanx of thumb

Q

A

Q

Actions of Extensor pollics brevis

A

Extends CMC, MCP of thumb

Q

Innervation of Extensor pollicis brevis

A

Radial n.

Q

Extensor pollicis longus

A

Proximal: Posterior surface of ulna and radius

Distal: phalanx of thumb

Q

Actions of Extensor pollicis longus

A

Extends CMC, MCP and IP of thumbs

Q

Innerrvations of Extensor pollicis longus

A

Radial n.

Q

Extensor indicis

A

Proximal: Posterior surfaces of radius and ulna

Distal: Extensor expansion of 2nd digit

Q

Actions of Extensor indicis

A

Extends 2nd digit

Q

Innervations of Extensor indicis

A

Radial n.