How to divide segments? Anterior View C2 Anterior roct(AR Posterior View C2 Posterioroo(Pp用 C3A Aradhnoid Ca PR Arachnoid CA AR C4PR AR The spinal segment refers to a region a pair of spinal nerves arises (cervical=8;thoracic=12;lumbar=5;sacral=5;Coccygeal=1)How to divide segments? (cervical=8; thoracic=12; lumbar=5; sacral=5; Coccygeal=1) The spinal segment refers to a region a pair of spinal nerves arises