extensor digitorum muscle :-

Extensor digitorum muscle :-

Muscle details :-

The extensor digitorum muscle (also known as extensor digitorum communis) is a muscle of the posterior forearm present in humans and other animals. It extends the medial four digits of the hand. Extensor digitorum is innervated by the posterior interosseous nerve, which is a branch of the radial nerve .

Origin :-

lateral epicondyle of humerus .

Insertion :

bases of middle phalanges of the 2nd – 5th digitis .

Nerve supply :-

deep branch of radial nerve .

Action :-

extends fingers of hand .

deformity :-

in wrist drop related extensor digitorum muscle in radial nerve injury .



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Physiotherapist , Samarpan Physiotherapy Clinic, Vastral, Nirant Cross Road, Ahmedabad

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