| Flexor pollicis brevis muscle | |
|---|---|
 Superficial muscles of the left hand, palmar view. | |
| Details | |
| Origin | Trapezium, flexor retinaculum |
| Insertion | Thumb, proximal phalanx |
| Artery | Superficial palmar arch |
| Nerve | Recurrent branch of the median nerve, deep branch of ulnar nerve (medial head) |
| Actions | Flexes the thumb at the first metacarpophalangeal joint |
| Antagonist | Extensor pollicis longus and brevis |
| Identifiers | |
| Latin | musculus flexor pollicis brevis |
| TA98 | A04.6.02.055 |
| TA2 | 2522 |
| FMA | 37378 |
| Anatomical terms of muscle | |
The flexor pollicis brevis is a muscle in the hand that flexes the thumb. It is one of three thenar muscles.[1][2] It has both a superficial part and a deep part.
- ^ Fernández-de-las-Peñas, César; Iglesias, Javier González; Gröbli, Christian; Weissmann, Ricky (2012-01-01), Dommerholt, Jan; Fernández-de-las-Peñas, César (eds.), "8 - Deep dry needling of the arm and hand muscles", Trigger Point Dry Needling, Oxford: Churchill Livingstone, pp. 107–118, doi:10.1016/b978-0-7020-4601-8.00008-6, ISBN 978-0-7020-4601-8, retrieved 2020-10-25
- ^ Strickland, James W. (2006-01-01), Henderson, Anne; Pehoski, Charlane (eds.), "Chapter 2 - Anatomy and Kinesiology of the Hand", Hand Function in the Child (Second Edition), Saint Louis: Mosby, pp. 21–44, doi:10.1016/b978-032303186-8.50005-8, ISBN 978-0-323-03186-8, retrieved 2020-10-25