Abductor Hallucis

Authors

Affiliations

Nathaniel Yomogida, B.S., SPT

Doctor of Physical Therapy

B.S. in Kinesiology

Chloë Kerstein, B.S., SPT

Doctor of Physical Therapy

B.A. in Neuroscience

Schematic of 1st layer of Plantar Intrinsic Foot Muscles¹
1: Abductor hallucis
2: Flexor digitorum brevis
Abductor digiti minimi

1st Layer Intrinsic Plantar Foot Muscles¹

Overview

Muscle	Origin	Insertion	Innervation	Action
Abductor hallucis	Medial calcaneal tuberosity Plantar aponeurosis Flexor retinaculum	Medial aspect of 1st Proximal phalanx	Medial Plantar n. S1 - S2	1st Toe: MTP Flexion, MTP Abduction Arch support: Longitudinal arch support

Origin

• Medial calcaneal tuberosity¹
• Plantar aponeurosis¹
• Flexor retinaculum¹

Insertion

Medial proximal phalanx of 1st toe¹

Innervation

Medial Plantar N. (S1, S2)¹

Action

• 1st MTP: flexion, abd of first toe¹
• Longitudinal Arch: Support¹

MMT

1.

Gilroy AM, MacPherson BR, Wikenheiser JC, Voll MM, Wesker K, Schünke M, eds. Atlas of Anatomy. 4th ed. Thieme; 2020.