NCIt related terms : Sacral plexus structure (body structure);
NCIt definition : A network of nerve fibers that are derived from the anterior rami of spinal nerves
L4-L5 and S1-S4, and which are part of the larger lumbosacral plexus, providing motor
and sensory innervation for the posterior thigh, most of the lower leg, the entire
foot, and part of the pelvis.;