Extensor carpi radialis longus

Origin	Lateral supracondylar ridge
Insertion	2nd metacarpal
Action(s)	Extensor at the wrist joint, abducts the hand at the wrist
Nerve Supply	Being an extensor contained in the forearm, it is innervated by the radial nerve.
Arterial Supply	Radial artery
Physical Exam	Enter physical examination maneuvers for muscle
Clinical Importance	Enter clinical importance of muscle
Disease States	Enter links to pages where muscle involved
Discussion	As the name suggests, this muscle is an extensor at the wrist joint, and travels along the radial side of the arm, so will also abduct the hand at the wrist. That is, it manipulates the wrist so as to move the hand towards the thumb (i.e., abduction—away from the midline of the body) and away from the palm (i.e., extension—increased angle between the palm and the front of the forearm). The muscle, like all extensors of the forearm, can be strengthened by exercise that resist its extension. A wrist roller can be used and reverse wrist curls with dumbbells can performed.

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From Wikipedia:
Extensor carpi radialis longus

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Last Updated on June 27, 2024

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