NROB60H3 Chapter Notes - Chapter 7: Dorsal Root Ganglion, Dura Mater, Sagittal Plane
Document Summary
Brain is divided in central and peripheral nervous system. We begin with the rat because it is a simplifi ed version that has all the general features of mammalian nervous system organization. In the head lies the brain, and the spinal cord runs down inside the backbone toward the tail. The direction, or anatomical reference, pointing toward the rat"s nose is known as anterior or rostral (from the latin for beak ). The direction pointing toward the rat"s tail is posterior or caudal (from the latin for tail ). The direction pointing up is known as dorsal (from the latin for back ), and the direction pointing down is ventral (from the latin for belly . Thus, the rat spinal cord runs anterior to posterior. The top side of the spinal cord is the dorsal side, and the bottom side is the ventral side.
