Flexor carpi radialis muscle

Flexor carpi radialis muscle

Anterior view of the left forearm. Superficial muscles. (Flexor carpi radialis and its tendon visible in blue.)

Anterior view of right upper extremity. (Flex. carp. rad. labeled at upper left.)
Details
Origin medial epicondyle of humerus (common flexor tendon)
Insertion Bases of second and third metacarpal bones
Artery Radial Artery
Nerve Median nerve
Actions Flexion and abduction at wrist
Antagonist Extensor carpi ulnaris muscle
Identifiers
Latin musculus flexor carpi radialis
TA A04.6.02.028
FMA 38459

Anatomical terms of muscle

In anatomy, flexor carpi radialis is a muscle of the human forearm that acts to flex and (radial) abduct the hand. The Latin carpus means wrist, and carpi "of the wrist." Hence flexor carpi is a flexor of the wrist.

Origin and insertion

This muscle originates on the medial epicondyle of the humerus. It runs just laterally of flexor digitorum superficialis and inserts on the anterior aspect of the base of the second metacarpal, and has small slips to both the third metacarpal and trapezial tuberosity.[1]

On the anterior aspect of a person's forearm, proximal to the wrist, flexor carpi radialis is the most lateral (closest to the thumb) tendon visible when the wrist is brought into flexion.

Nerve and artery

As are most of the flexors of the hand, FCR is innervated by the median nerve. It gets its blood from the radial artery.

Exercises

The muscle, like all flexors of the forearm, can be strengthened by exercises that resist its flexion. A wrist roller can be used and wrist curls with dumbbells can also be performed.

See also

Additional images

External links

References

  1. ↑ Wheeless' Textbook of Orthopaedics
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