MSK - Upper Limb 2

Question 1

What are the two heads of the biceps brachii?

Answer 1

Short and long head

Question 2

Which head of the biceps arises from the coracoid process along with the coracobrachialis?

Answer 2

Short head

Question 3

Which head of the biceps arises from the supraglenoid tubercle and runs in the bicipital groove of the humerus?

Answer 3

Long head

Question 4

To which bony process of the radius is the tendon of the biceps attached distally?

Answer 4

Radial tuberosity

Question 5

What is the action of the biceps on the superior radioulnar joint?

Answer 5

Supination

Question 6

What is the nerve supply to the biceps brachii?

Answer 6

Musculocutaneous nerve

Question 7

From which cord of the brachial plexus does the musculocutaneous nerve arise?

Answer 7

Lateral cord

Question 8

What are the actions of coracobrachialis on the shoulder joint?

Answer 8

Draws the humerus forwards - shoulder flexion

Draws the humerus towards torso - shoulder adduction

Question 9

What is the nerve supply to the coracobrachialis muscle?

Answer 9

Musculocutaneous nerve

Question 10

What is the main action of brachialis on the elbow joint?

Answer 10

Flexion

Question 11

Which nerve supplies the brachialis muscle?

Answer 11

Musculocutaneous nerve

Question 12

What is the segmental root value of the musculocutaneous nerve?

Answer 12

C5-7

Question 13

Which three muscles are supplied by the musculocutaneous nerve?

Answer 13

Biceps brachii, brachialis, coracobrachialis

Question 14

From which part of the forearm does the musculocutaneous nerve carry cutaneous sensation?

Answer 14

Lateral side of the forearm from the elbow to the wrist