El músculo extensor radial largo del carpo es un músculo situado en el compartimento superficial de la parte posterior del antebrazo. Su ubicación lateral en el antebrazo produce tanto abducción como extensión de la muñeca. El tendón del músculo extensor radial largo del carpo pasa a través del segundo compartimento extensor de la muñeca. Inserciones: se origina en la cresta supracondílea lateral del húmero y se inserta en la base del segundo metacarpiano. Acciones: extensión y abducción de la muñeca. Inervación: nervio radial. 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 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 carpi radialis longus muscle? The extensor carpi radialis longus is a muscle located in the superficial compartment of the posterior forearm. It plays a key role in the abduction and extension of the wrist. What are the attachments of the extensor carpi radialis longus? This muscle originates from the lateral supracondylar ridge of the humerus and inserts at the base of the second metacarpal. These attachments facilitate its function in wrist movement. What actions does the extensor carpi radialis longus perform? The primary actions of the extensor carpi radialis longus are wrist extension and abduction. These movements are essential for various hand functions. Which nerve innervates the extensor carpi radialis longus? The extensor carpi radialis longus is innervated by the radial nerve. This innervation is crucial for its motor function in wrist movements. What is the blood supply for the extensor carpi radialis longus? The blood supply to the extensor carpi radialis longus comes from the radial artery. This vascular supply is important for maintaining the muscle's health and function. Rate This Article