Abductor digiti minimi muscle (foot)

Abductor digiti minimi muscle of foot
First layer of the muscles of the sole (abductor digiti minimi visible at center right).
Superficial view of the plantar arteries (abductor digiti minimi visible at center right).
Details
Origin	Plantar aponeurosis
Insertion	Fifth toe or phalanges
Artery	Lateral plantar artery
Nerve	Lateral plantar nerve
Actions	Flexion and abduction of the fifth toe
Antagonist	Flexor digiti minimi brevis muscle
Identifiers
Latin	Musculus abductor digiti minimi pedis
Dorlands /Elsevier	m_22/12548282
TA	A04.6.02.062
FMA	37451
Anatomical terms of muscle []

The abductor digiti minimi (abductor minimi digiti, abductor digiti quinti) is a muscle which lies along the lateral (outer) border of the foot, and is in relation by its medial margin with the lateral plantar artery, vein and nerves.

Its homolog in the arm is the abductor digiti minimi muscle in the hand.

It arises, 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.

The abductor digiti minimi is innervated by the lateral plantar nerve, a branch of the tibial nerve.

Its function is flexion and abduction of the fifth (little) toe at the metatarsophalangeal joint.