The flexor hallucis brevis muscle can be found in the sole of the foot. It comes from under the cuboid bone’s medial portion, the tibialis posterior tendon’s prolongation, and the third cuneiform’s contiguous part. It has two heads that insert on the lateral and medial sides at the base of the big toe’s first phalanx. The flexor hallucis brevis muscle helps with bending down the big toe.
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