El músculo extensor de los dedos es un músculo situado en el compartimento superficial de la parte posterior del antebrazo. Los tendones del músculo extensor de los dedos pasan a través del cuarto compartimento extensor de la muñeca. Inserciones: se origina en el epicóndilo lateral del húmero. El tendón se divide en cuatro en la parte distal del antebrazo y se inserta en la vaina extensora de cada dedo. Acciones: extensión de los dedos en las articulaciones interfalángicas y metacarpofalángicas. Inervación: nervio radial (rama profunda). Irrigación sanguínea: arteria radial. By TeachMeSeries Ltd (2026) Fig. 1: los músculos de la capa superficial de la parte posterior del antebrazo. Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Pro Feature - Dissection Atlas Prosection of the superficial layer of muscles within the posterior compartment of the forearm. Prosection of the superficial layer of muscles within the posterior compartment of the forearm. You've Discovered a Pro Feature Access our Dissection Image Library Enhance your understanding with high-resolution dissection images showcasing real-life anatomy. Learn More Frequent questions What is the extensor digitorum muscle? The extensor digitorum muscle is located in the superficial compartment of the posterior forearm. It plays a crucial role in extending the fingers at the metacarpophalangeal and interphalangeal joints. Where does the extensor digitorum muscle originate? The extensor digitorum muscle originates from the lateral epicondyle of the humerus. This origin allows it to effectively extend the fingers during hand movements. How is the extensor digitorum muscle innervated? The extensor digitorum muscle is innervated by the deep branch of the radial nerve. This innervation is essential for the muscle's function in finger extension. What are the actions of the extensor digitorum muscle? The primary actions of the extensor digitorum muscle include the extension of the fingers at both the metacarpophalangeal and interphalangeal joints. This function is vital for various hand movements. What is the blood supply to the extensor digitorum muscle? The extensor digitorum muscle receives its blood supply from the radial artery. This vascularisation supports the muscle's activity and overall health. Rate This Article