Biceps Brachi
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The term biceps brachii is a Latin phrase meaning "two-headed [muscle] of the arm", in reference to the fact that the muscle consists of two bundles each with its own origin but with a common insertion point near the elbow.
Proximally, the short head of the biceps attaches to (originates from) the coracoid process of the scapula. The tendon of the long head passes into the joint capsule at the head of the humerus, and attaches on the scapula at the supraglenoid tubercle.
Distally, biceps attaches to (inserts into) the radial tuberosity, and because this bone can rotate, the biceps also supinates the forearm. The biceps also connects with the fascia of the medial side of the arm, at the bicipital aponeurosis. See Triceps and Forearm.
This article was originally based on an entry from a public domain edition of Gray's Anatomy.