Abductor Digiti Minimi of the foot

Authors

Affiliations

Nate 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

Figure 1: Intrinsic foot muscles¹

Schematic of 1st layer of Plantar Intrinsic Foot Muscles²
1: Abductor hallucis
2: Flexor digitorum brevis
Abductor digiti minimi

1st Layer Intrinsic Plantar Foot Muscles²

1st layer of the plantar foot³

2nd layer of the plantar foot³

3rd layer of the plantar foot³

Reading list

• Ch70 Intrinsic muscles of the foot⁴
• Neuman⁵

Overview

Muscle	Origin	Insertion	Innervation	Action
Abductor digiti minimi (Foot)	Plantar aponeurosis	5th metatarsal tuberosity	S2 - S3	5th Toe: MTP Abduction Arch support: Longitudinal arch support

Origin

• Medial tubercle of calcaneal tuberosity²
• Plantar aponeurosis²

Insertion

• 5th toe (Base of proximal phalanx)²
• 5th metatarsal at tuberosity²

Innervation

Lateral Plantar N. (S1, S2, S3)²

Action

• 5th MTP: Flexion, ABD²
• Longitudinal Arch: Support²

MMT

1.

Betts JG, Blaker W. Anatomy and Physiology. 2nd ed. OpenStax; 2022. https://openstax.org/details/books/anatomy-and-physiology-2e/?Book%20details

2.

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

3.

Gray H. Anatomy of the Human Body. 20th ed. (Lewis WH, ed.). Lea & Febiger; 1918. https://www.bartleby.com/107/

4.

Donnelly JM, Simons DG, eds. Travell, Simons & Simons’ Myofascial Pain and Dysfunction: The Trigger Point Manual. Third edition. Wolters Kluwer Health; 2019.

5.

Neumann DA, Kelly ER, Kiefer CL, Martens K, Grosz CM. Kinesiology of the Musculoskeletal System: Foundations for Rehabilitation. 3rd ed. Elsevier; 2017.