Extensor Hallucis Brevis (EHB)

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 Intrinsic Dorsal Muscles of the foot 1: Extensor digitorum brevis 2: Extensor hallucis brevis1 — Schematic of Intrinsic Dorsal Muscles of the foot
1: Extensor digitorum brevis
2: Extensor hallucis brevis¹

Intrinsic Dorsal Muscles of the foot1 — Intrinsic Dorsal Muscles of the foot¹

Overview

Muscle	Origin	Insertion	Innervation	Action
Extensor hallucis brevis	Calcaneus (lateral dorsal)	1st Proximal phalanx	Deep Fibular n. L5 - S1	1st Toe: MTP Extension

Origin

Calcaneus (lateral dorsal surface)¹

Insertion

Prox. phalanx of 1st toe¹

Nerve

Deep Fibular N. (L5, S1)¹

Action

1st MTP: Extension¹

MMT

“The EHL and the EHB muscles produce the motion of extension of the IP and MTP joints. The foot is maintained in midposition. Resistance is applied to the posterior aspect of both phalanges of the first digit into toe flexion.”²

References

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

Dutton M. Dutton’s Orthopaedic Examination, Evaluation, and Intervention. 5th ed. McGraw Hill Education; 2020.

Citation

For attribution, please cite this work as:

Yomogida N, Kerstein C. Extensor Hallucis Brevis (EHB). https://yomokerst.com/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_hallucis_brevis.html