Abductor Digiti Minimi (Foot)

Original Editor - Nikhil Benhur Abburi

Top Contributors - Nikhil Benhur Abburi and Kim Jackson

Description

[1]Abductor digiti minimi

It is a small muscle of the foot situated on the lateral border of the foot. it is homologous to abductor digiti minimi of hand.

Origin

Lateral and medial processes of Calcaneal tuberosity, plantar aponeurosis, intermuscular septum

Insertion

Lateral side of base of proximal phalanx of fifth toe

Nerve

Lateral plantar nerve(S1-S3) from tibial nerve

Artery

Supplied by the Lateral plantar artery

Function

Abducts little toe at metatarsophalangeal joint

[2]

Clinical relevance

In rare conditions, the muscle may be bifid, the additional belly can be used as a flap in reconstructive surgery of the foot, it may be symptomatic only in cases of entrapment[3]

Resources

  1. https://commons.wikimedia.org/wiki/File:Abductor_digiti_minimi_(foot).png
  2. Kenhub - Learn Human Anatomy. Functions of the lateral plantar muscles of the foot (preview) - Human 3D Anatomy | Kenhub. Available from: https://www.youtube.com/watch?v=DcX2xZ9QIHg [last accessed 31/3/2020]
  3. Sa Das, Rakesh suri, V Kapur Clinical importance of bifid Abductor Digiti Minimi muscle of the foot. Research Gate June 2003

Resources