| Lumbricals of the hand | |
|---|---|
.png) The muscles of the left hand. Palmar surface. (first lumbricalis labeled at bottom right of muscular group) | |
| Details | |
| Origin | Flexor digitorum profundus |
| Insertion | Extensor expansion |
| Artery | Superficial palmar arch, common palmar digital arteries, deep palmar arch, dorsal digital artery |
| Nerve | Third and fourth deep branch of ulnar nerve, first and second median nerve |
| Actions | Flex metacarpophalangeal joints, extend interphalangeal joints |
| Identifiers | |
| Latin | musculi lumbricales manus |
| TA98 | A04.6.02.065 |
| TA2 | 2532 |
| FMA | 37385 |
| Anatomical terms of muscle | |
The lumbricals are intrinsic muscles of the hand that flex the metacarpophalangeal joints,[1] and extend the interphalangeal joints.[1][2]
The lumbrical muscles of the foot also have a similar action, though they are of less clinical concern.
- ^ a b Gosling JA, Harris PF, Humpherson JR, Whitmore I, Willan PL (2008). Human Anatomy: Color Atlas and Textbook (5th ed.). Philadelphia: Mosby. ISBN 978-0-7234-3451-1. p. 97
- ^ Bilge O, Pinar Y, Ozer MA, Govsa F (October 2007). "The vascular anatomy of the lumbrical muscles in the hand". Journal of Plastic, Reconstructive & Aesthetic Surgery. 60 (10): 1120–6. doi:10.1016/j.bjps.2006.06.023. PMID 17825776.