Biceps Brachii (Origin, Insertion, Innervation, Action)
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What is the action of the biceps brachii?
Supinates forearm and, when it is supine, flexes forearm; short head resists dislocation of shoulder
What is the innervation of the biceps brachii?
musculocutaneous nerve (C5, C6, C7)
What are the two heads of the bicep brachii?
short and long head
What is the proximal attachment of the long head of the biceps brachii?
supraglenoid tubercle of scapula
What is the proximal attachment of the short head of the biceps brachii?
tip of coracoid process of scapula
What is the distal attachment of the biceps brachii?
tuberosity of radius and fascia of forearm via bicipital aponeurosis
