El braquial es un músculo situado en el compartimento anterior de la parte superior del brazo. Se sitúa en profundidad respecto al bíceps braquial y forma el fondo de la fosa cubital. Inserciones: se origina en las superficies medial y lateral de la diáfisis del húmero. Se inserta en la tuberosidad cubital, inmediatamente distal a la articulación del codo. Función: flexión del codo. Inervación: nervio musculocutáneo (con aportaciones del nervio radial). Irrigación sanguínea: arteria braquial y arteria radial. By TeachMeSeries Ltd (2026) Fig. 1: Músculos coracobraquial, bíceps braquial y braquial de la cara anterior del brazo. 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 brachialis muscle? The brachialis is a muscle located in the anterior compartment of the upper arm, positioned beneath the biceps brachii and forming the floor of the cubital fossa. What are the attachments of the brachialis muscle? The brachialis originates from the medial and lateral surfaces of the humeral diaphysis and inserts at the ulnar tuberosity, just distal to the elbow joint. What is the primary function of the brachialis? The main function of the brachialis is to flex the elbow joint, playing a crucial role in arm movement. Which nerves innervate the brachialis muscle? The brachialis is innervated primarily by the musculocutaneous nerve, with contributions from the radial nerve. What is the blood supply to the brachialis muscle? The brachialis receives its blood supply from the brachial artery and the radial artery, ensuring it has adequate oxygen and nutrients for function. Rate This Article