PGY 300 Lecture Notes - Lecture 1: Dorsal Root Ganglion, Choroid Plexus, Posterior Grey Column

• School: University at Buffalo
• Department: Physiology
• Course: PGY 300
• Professor: Hudson Randall

Document Summary

Hole that runs from brain through spinal cord. Spinal tap look for bacteria affecting cns. Provide protection for neurons inside spinal cord. Cerebrospinal fluid provides nutrition to parts of brain. Some come into spinal cord from periphery. Others leave spinal cord and go out to muscles and glands. Nerve cell bodies (neurons and processes that connect with each other) Neurons coming from periphery synapse on gray matter. Have cell bodies (soma) in dorsal root ganglion (group of nerve cell bodies outside of cns) fibers running through and into dorsal horn (part of gray matter) Fibers running up and down spinal cord (like insulated wires) are white and glisten. White attributable to white lipid membrane (myelin) From ventral horn ventral root muscles and glands. Carry sensory information up to the brain. Also contained in large ventricles located in different parts of brain. Flow of solution connects ventricles (thing great lakes)