Lateral view, left side
The radial nerve is fondly referred to as
the "biggest hugest nervus in the arm" by Dr. J's students. It is a
branch of the posterior cord containing nerves from
the anterior rami of C5,
C6, C7, C8, and
T1. It serves the posterior compartment of the arm and forearm as
well as the brachioradialis muscle. It controls all the extensor muscles
found in the arm and forearm and two of the supinator muscles (supinator and
brachioradialis). It also receives sensory input from the posterolateral
cutaneous area of the hand. When damaged it is results in the clinical
condition called wrist drop.
COPYRIGHT
2006 by William Johnson II
ALL RIGHTS RESERVED!
Lateral view, left side