(a) Define plexus. (b) Indicate the spinal roots of origin of the four major nerve plexuses, and name the general body regions served by each.© BrainMass Inc. brainmass.com October 9, 2019, 7:05 pm ad1c9bdddf
A plexus is a network of spinal nerves that form on both the left and right sides of the body by joining with varying numbers of nerve fibers from ventral rami of adjacent nerves. Therefore, the ventral rami of spinal nerves do not go directly to the body structures they supply. They form plexuses first. The exception to ...
This solution discusses plexuses.