Biceps Brachii - Podcast Version 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x The biceps brachii is a muscle in the anterior compartment of the upper arm. Although the majority of its mass is located anteriorly to the humerus, it has no attachment to the bone itself. Attachments: Long head originates from the supraglenoid tubercle of the scapula, and the short head originates from the coracoid process of the scapula. Both heads insert distally into the radial tuberosity and the fascia of the forearm via the bicipital aponeurosis. Function: Supination of the forearm, flexion at the elbow and shoulder. Innervation: Musculocutaneous nerve. Blood supply: Brachial artery. By TeachMeSeries Ltd (2026) Fig 1The coracobrachialis, biceps brachii and brachialis muscles of the anterior upper arm. 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 and where is it located? The biceps brachii is a prominent muscle found in the anterior compartment of the upper arm. It is primarily situated anterior to the humerus, although it does not attach directly to the bone. 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 into the radial tuberosity and the fascia of the forearm via the bicipital aponeurosis. What is the primary function of the biceps brachii? The biceps brachii is responsible for supination of the forearm, as well as flexion at both the elbow and shoulder joints. This muscle plays a key role in various arm movements. Which nerve innervates the biceps brachii? The biceps brachii is innervated by the musculocutaneous nerve. This nerve is crucial for the muscle's motor function. What is the blood supply to the biceps brachii? The biceps brachii receives its blood supply from the brachial artery. This vascular connection is essential for delivering nutrients and oxygen to the muscle. Rate This Article