El bíceps braquial es un músculo situado en el compartimento anterior de la parte superior del brazo. Aunque la mayor parte de su masa se encuentra en la parte anterior del húmero, no presenta ninguna inserción en el propio hueso. Inserciones: el cabezal largo se origina en el tubérculo supraglenoideo de la escápula, y el cabezal corto se origina en la apófisis coracoidea de la escápula. Ambas cabezas se insertan distalmente en la tuberosidad radial y en la fascia del antebrazo a través de la aponeurosis del bíceps. Función: supinación del antebrazo, flexión del codo y del hombro. Inervación: nervio musculocutáneo. Irrigación sanguínea: arteria braquial. 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 Pro Feature - Dissection Atlas Prosection of the upper limb. The biceps brachii and coracobrachialis are visible, as well as the major peripheral nerves of the upper limb. Prosection of the upper limb. The biceps brachii and coracobrachialis are visible, as well as the major peripheral nerves of the upper limb. 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 biceps brachii muscle? The biceps brachii is a muscle located in the anterior compartment of the upper arm. It plays a key role in the movement of the elbow and shoulder joints. What are the attachments of the biceps brachii? The biceps brachii has two heads: the long head originates from the supraglenoid tubercle of the scapula, while the short head arises from the coracoid process of the scapula. Both heads insert distally into the radial tuberosity and the fascia of the forearm via the biceps aponeurosis. What is the primary function of the biceps brachii? The main functions of the biceps brachii include supination of the forearm and flexion at both the elbow and shoulder joints. This muscle is essential for various lifting and pulling movements. What nerve innervates the biceps brachii? The biceps brachii is innervated by the musculocutaneous nerve. This nerve is responsible for transmitting motor signals to the muscle, facilitating its contraction. What is the blood supply for the biceps brachii? The blood supply to the biceps brachii comes from the brachial artery. This artery ensures that the muscle receives the necessary nutrients and oxygen for optimal function. Rate This Article