Extensor Digitorum Brevis
Origin[edit | edit source]
It`s one of the intrinsic muscles on the dorsum of the foot.It arises from the upper and lateral of surface of the calacaneous,floor of tarsal sinus, talocalcaneal ligament, stem of inferior extensor retinaculum [1][2]
Insertion[edit | edit source]
It`s tendons inserted into the long tendons of four medial digits (toes 2_4)[2]
Nerve supply[edit | edit source]
deep fibular nervre ( L5 orS1 or both )[2]
Action[edit | edit source]
Helps Extensor digiorium longus in extending of metatarsophalangeal joints, interphalangeal joints of the 2nd, 3rd and 4th toes[2]
