Musculocutaneous Nerve

Question 1

Root value of musculocutaneous nerve

Answer 1

C5-C7

Question 2

Origin of Musculocutaneous nerve

Answer 2

It arises from lateral cord of brachial plexus in the lower part of axilla

Question 3

Course

Answer 3

It accompanies 3rd part of axillary artery and then enters front of arm piercing coracobrachialis muscle.

It then runs downwards and laterally between biceps brachii and brachialis to reach lateral side of tendon of biceps brachii

Question 4

Termination

Answer 4

It terminates by continuing as lateral cutaneous nerve of forearm 2cm above bend of elbow

Question 5

Branches of musculocutaneous nerve

Answer 5

Muscular branches

Cutaneous branches

Articular branches

Communicating branches