Extensor Digitorum Brevis: Origin, Insertion, Action & Nerve Supply

Extensor Digitorum Brevis: The extensor digitorum brevis muscle is placed on the top of the foot. The muscle is attached to tendons that extend to the toes.

Origin: Originates from the calcaneus, the interosseous talocalcaneal ligament, and the inferior extensor retinaculum.
Insertion: The extensor digitorum brevis inserts into the long extensor tendons of the four lateral digits.

Function: The extensor digitorum brevis muscle helps the extensor digitorum longus in extending the lateral four toes at the metatarsophalangeal and interphalangeal joints.

Nerve Supply: Deep fibular nerve.

Clinical Significance: Extensor Tendonitis

Muscles of the Lower Limb

Leg Muscles
Thigh Muscles
Foot Muscles