Origin Posterior surface of ulna and interosseous membrane Insertion Extensor expansion of 2nd digit Action Extends 2nd digit and helps to extend hand Innervation Posterior interosseous nerve (C7 and C8), the continuation of the deep branch of the radial nerve (C7, C8) Arterial Supply Posterior interosseous artery more distal muscle belly in comparison to the EDC
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All Videos (0) Podcasts (1) Anatomy⎪Extensor Indicis Anatomy - Extensor Indicis Listen Now 2:36 min 2/4/2021 38 plays 0.0 (0)