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Biceps Brachii
Origin: A. Short head: coracoid process of scapula
B. Long head: supraglenoid tubercle of scapula
Insertion: Tuberosity of radius
Action: Flexion of elbow
Supination of forearm
Short head – flexion of humerus
Nerve: Long thoracic Nerve (Cervical 5, 6)
Palpate: Palpate belly on anterior surface of humerus and tendon in antecubital fossa during active elbow flexion
Biceps means two heads and brachium means arm (Latin). The long head travels through the capsule of the shoulder joint and the bicipital groove. The short head originates on the coracoid process along with the origin of the Coracobrachialis and the insertion of the pectoralis minor.