Tim Taylor is a senior writer at Innerbody Research focusing on human anatomy and physiology. Tim earned both his Bachelor of Science degree in Biology and his Master's degree in Teaching from the University of Pittsburgh.

Last updated: May 5th, 2025

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The flexor hallucis longus muscle is one of the hallux (plural, hallucis) muscles pertaining to the big toe. It is used in flexing the big toe and moving it to the side. The extensor hallucis longus are muscles used in extending the toe.

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