PS263 Chapter Notes - Chapter 3: Grey Matter, Sagittal Plane, Autonomic Nervous System
Document Summary
However they also depend on connections with other areas. For vertebrates, we distinguish the central nervous system cns from the peripheral nervous system pns. Connects brain and spinal cord to the rest of body. Sns consists of axons conveying messages from sense organs to cns and from cns to muslces. Dorsal: toward the back, top of brain is dorsal bc it"s away from stomach side in four legged animals. Ventral: toward the stomach, away from back side. Proximal: located close to the point of origin or attachment. Distal: located more distant from point or origin or attachment. Coronal/frontal plane: plane that shows brain structures as seen from the front. Sagittal plane: plane shows brain structures from the side. Horizontal plane: plane that shows brain structures as seen from above. Lamina: row or layer of cell bodies separated from other cell bodies by a layer of axons and dendrites. Column: set of cells perpendicular to surface of cortex with similar properties.
