cutaneous nerves of arm and forearm

Question 1

supraclavicular (c3, C4)

Answer 1

supply skin over clavicle, pectoralis major

Question 2

posterior cutaneous nerve

Answer 2

branch of the radial nerve, posterior surface of the arm

Question 3

posterior cutaneous nerve of the forearm

Answer 3

branch of radial nerve, supplies skin on the posterior surface of forearm

Question 4

superior lateral cutaneous nerve of the arm

Answer 4

terminal branch of axillary , emerges posterior to the deltoid, innervates the lower part of deltoid, lateral side of mid arm

Question 5

inferior lateral cutaneous nerve

Answer 5

branch of radial nerve, inferolateral aspect of arm

Question 6

lateral cutaneous nerve

Answer 6

terminal cutaneous branch of musculocutaneous branch - supplies the lateral side of forearm

Question 7

medial cutaneous nerve

Answer 7

arises from the medial cord of the brachial plexus, in the axilla, innervates the cutaneous aspect of medial side of the arm

Question 8

intercostobrachial nerve

Answer 8

lateral cutaneous of 2nd intercostal from T2, innervates medial side of arm

Question 9

medial custaneous nerve of the forearm

Answer 9

arises from medial cord of brachial plexus, supplies skin of anterior and medial foreram