El músculo extensor del dedo meñique es un músculo situado en el compartimento superficial de la parte posterior del antebrazo. El tendón del músculo extensor del dedo meñique atraviesa el quinto compartimento extensor de la muñeca. Inserciones: se origina en el epicóndilo lateral del húmero. Se inserta en la vaina de los extensores del meñique. Acciones: extensión del meñique y extensor débil de la muñeca. 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 function of the extensor digiti minimi muscle? The extensor digiti minimi muscle primarily extends the little finger and provides weak extension of the wrist. This muscle plays a crucial role in hand movements, particularly when extending the fifth digit. Where does the extensor digiti minimi muscle originate? The extensor digiti minimi muscle originates from the lateral epicondyle of the humerus. This origin is common for several muscles in the posterior compartment of the forearm. How is the extensor digiti minimi muscle innervated? The extensor digiti minimi 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 insertion points of the extensor digiti minimi muscle? The muscle inserts into the extensor expansion of the little finger. This insertion allows it to effectively facilitate the extension of the fifth digit. What is the blood supply for the extensor digiti minimi muscle? The extensor digiti minimi muscle receives its blood supply from the radial artery. This vascularisation is vital for maintaining the muscle's function and health. Rate This Article