The flexor digiti minimi brevis (flexor brevis minimi digiti, flexor digiti quinti brevis) lies under the metatarsal bone of the little toe, and resembles one of the interossei.
It originates from the base of the fifth metatarsal bone, and from the sheath of the fibularis longus; its tendon is inserted into the base of the first phalanx of the fifth toe on its lateral side.
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