Abductor hallucis muscle

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Abductor hallucis muscle
Abductor hallucis.png
Sole muscles of man
Medial tubercle of the calcaneus
Base of the proximal phalanx of the big toe
Flexing and pulling out the big toe
Medial plantar nerve
Spinal segments

The abductor hallucis muscle ( Latin for "big toe spreader") is one of the skeletal muscles on the sole of the foot . The muscle forms the inner (medial) edge of the foot, its abdomen can be felt in the proximal part of the foot.

The muscle has three origins:

The muscle pulls over the medial sesamoid bone on the head of the first metatarsal bone , which serves as a pivot (hypomochlion), and attaches to the base of the base of the big toe.


The abductor hallucis muscle spreads the big toe outward. In addition, it is also involved in the flexion of the metatarsophalangeal joint of the big toe. It also plays a role in tensioning the longitudinal arch of the foot .

See also


  • Walther Graumann, Rolf Baur: Compact textbook anatomy . Volume 2. Schattauer Verlag, 2003, ISBN 978-3-7945-1944-6 , p. 224.