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Flexor Hallucis Longus Tendon

Medically reviewed by: Stephanie Curreli, MD, PhD
Last Updated: Jun 19, 2015

The flexor hallucis longus tendon attaches the muscle of the flexor hallucis longus to the big toe’s terminal phalanx. The flexor hallucis longus muscle is one of the hallux (plural, hallucis) muscles. It is used in flexing the largest, or big, toe and moving it to the side.