Q37 Biceps Brachii

Question 1

Give the proximal attachments of this muscle, briefly describing the course of the tendon of the long head

Answer 1

(two heads) Short head- tendon from apex of coracoid process of scapula. Long head- tendon from supraglenoid tubercle of scapula. Long head tendonpasses in a synovial sheath under the transverse ligament passes through intertubercular sulcus of the humerus

Question 2

Give the distal attachments of this muscle

Answer 2

Tendon twists before attaching to the radial tuberosity of the Radius. From the medial borders forms bicipital aponeurosis, it runs down and medially across cubital fossa to attach to the posterior border of the upper end of the ulna

Question 3

State the actions of this muscle

Answer 3

Flexion at the elbow, supination of the forearm, weak flexor of the shoulder

Question 4

Name the nerve that supplies this muscle

Answer 4

Musculocutaneous Nerve C5 C6