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The flexor digiti minimi brevis (flexor brevis minimi digiti, flexor digiti quinti brevis) lies under the metatarsal bone on the little toe, and resembles one of the interossei.
| Flexor digiti minimi brevis muscle | |
|---|---|
.png) Muscles of the sole of the foot. Third layer. (Flexor dig. quint. brev. labeled at center right.) | |
| Details | |
| Origin | Fifth metatarsal bone |
| Insertion | First phalanx of the fifth toe |
| Nerve | Superficial branch of lateral plantar nerve |
| Actions | Flexion and adduction of the fifth toe |
| Antagonist | Abductor digiti minimi muscle |
| Identifiers | |
| Latin | musculus flexor digiti minimi brevis pedis |
| TA98 | A04.7.02.066 |
| TA2 | 2682 |
| FMA | 37455 |
| Anatomical terms of muscle | |
It arises from the base of the fifth metatarsal bone, and from the sheath of the fibularis longus; its tendon is inserted into the lateral side of the base of the first phalanx of the fifth toe.
Occasionally a few of the deeper fibers are inserted into the lateral part of the distal half of the fifth metatarsal bone; these are described by some as a distinct muscle, the opponens digiti quinti.
References
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This article incorporates text in the public domain from page 494 of the 20th edition of Gray's Anatomy (1918).
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