Musculus extensor pollicis brevis

Musculus extensor pollicis brevis.

Beginning: radius.

Extension: dorsal surface of the proximal phalanx of the thumb.

Innervation: nervus radialis (C6-C8).

Function: extensor in the metacarpophalangeal joint of the thumb.

References

• ČIHÁK, Radomír a Miloš GRIM. Anatomie. 2., uprav. a dopl vydání. Praha : Grada Publishing, 2002. 470 s. sv. 1. ISBN 80-7169-970-5.