El músculo extensor corto de los dedos es un músculo intrínseco del pie. Es un músculo pequeño y delgado que se encuentra debajo de los tendones del músculo extensor largo del pie. Inserciones: se origina en el calcáneo y el retináculo extensor inferior. Se inserta en los tendones del músculo extensor largo de los dedos 2 a 4. Acciones: extensión de los cuatro dedos laterales. Inervación: nervio peroneo profundo. Irrigación sanguínea: arteria peronea y arteria tibial anterior (arteria dorsal del pie distalmente). By TeachMeSeries Ltd (2026) Fig. 1.0: la capa dorsal de los músculos del pie. 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 Frequent questions What is the extensor digitorum brevis muscle? The extensor digitorum brevis is an intrinsic muscle of the foot that plays a role in extending the lateral four toes. It is a small, thin muscle located beneath the tendons of the long extensor muscles. Where does the extensor digitorum brevis muscle originate and insert? This muscle originates from the calcaneus and the inferior extensor retinaculum, inserting into the tendons of the long extensor muscles for toes 2 to 4. This positioning allows it to assist in toe extension. What actions does the extensor digitorum brevis facilitate? The primary action of the extensor digitorum brevis is the extension of the lateral four toes. This function is crucial for activities such as walking and running. Which nerve innervates the extensor digitorum brevis muscle? The muscle is innervated by the deep peroneal nerve, which provides the necessary motor function for toe extension. This innervation is vital for proper foot mechanics. What are the blood supply sources for the extensor digitorum brevis? The extensor digitorum brevis receives its blood supply from the peroneal artery and the anterior tibial artery, specifically the distal dorsal artery of the foot. This vascularisation supports the muscle’s metabolic needs during activity. Rate This Article