Which one of the following statements regarding the
anatomy of the brachial plexus is TRUE?
a) The median nerve derives contributions from
spinal nerve roots C5 to C8
b) The upper, middle and lower trunks each have
divisions that unite to form the
posterior cord
c) The axillary and radial nerves are both derived
from the lateral cord
d) The medial cutaneous nerves of the arm and
forearm are branches of the ulnar nerve
e) The lateral cutaneous nerve of the forearm is a
terminal branch of the radial nerve
