Anatomical hierarchy

General Anatomy > Muscles; Muscular system > Muscles of lower limb > Muscles > Abductor digiti minimi

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Origin: Plantar aponeurosis

Insertion: Fifth toe or Phalanges

Artery: Lateral plantar artery

Nerve: Lateral plantar nerve (S1, S2)

Action: Flex and abduct the fifth toe

Antagonist: Flexor digiti minimi brevis muscle

The Abductor digiti minimi (Abductor digiti quinti) lies along the lateral border of the foot, and is in relation by its medial margin with the lateral plantar vessels and nerves. Itarises, by a broad origin, from the lateral process of the tuberosity of the calcaneus, from the under surface of the calcaneus between the two processes of the tuberosity, from the forepart of the medial process, from the plantar aponeurosis, and from the intermuscular septum between it and the Flexor digitorum brevis. Its tendon, after gliding over a smooth facet on the under surface of the base of the fifth metatarsal bone, is inserted, with the Flexor digiti quinti brevis, into the fibular side of the base of the first phalanx of the fifth toe.

Variations.—Slips of origin from the tuberosity at the base of the fifth metatarsal.Abductor ossis metatarsi quinti, origin external tubercle of the calcaneus, insertion into tuberosity of the fifth metatarsal bone in common with or beneath the outer margin of the plantar fascia.

This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from


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