Adductor Hallucis

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

1st layer of the plantar foot¹

2nd layer of the plantar foot¹

3rd layer of the plantar foot¹

Overview

Muscle	Origin	Insertion	Innervation	Action
Abductor digiti minimi	Medial tubercle of calcaneal tuberosity Cuboid Lateral cuneiforms 3-5th MTP joints Deep transverse metatarsal lig.	Base of 5th proximal phalanx Base of 1st proximal phalanx (via common tendon)	Lateral Plantar n. Lateral Plantar n. (Deep branch) S1 - S3	5th Toe: MTP Flexion 1st MTP: Flexion, Adduction Arch Support: *Transverse head* supports transverse arch, *Oblique head* supports longitudinal arch

3rd layer

Origin

• Oblique head:
  • Base of 2-4th metatarsals²
  • Cuboid²
  • Lateral cuneiforms²
• Transverse head:
  • MTP joints of toes 3-5²
  • Deep transverse metatarsal lig.²

Caution

I have no idea what “lateral cuneiforms” means since I do not know why it is plural and what cuneiforms it actually includes

Insertion

Base of prox phalanx of 1st toe

Innervation

Lateral Plantar N. (deep branch) (S2, S3)²

Action

• 1st MTP: Flexion²
• 1st Toe: Adduction²
• Transverse head: supports transverse arch²
• Oblique head: Supports longitudinal arch²

MMT

1.

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

2.

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