PSY 1101 Lecture Notes - Lecture 3: Reuptake, Myelin, Neuron

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1101
• Professor: Kenneth Campbell

Document Summary

Cell membrane: surrounds the soma and allows things to pass in and out of the cell. Nucleus: contains the genetic information of the cell. Meet up with and receive messages with other neurons with specialized receptors. Axon: all nerve cells have (in general) in single axon of varying length; long axons are surrounded by a myelin sheath (a layer of fat) and short ones are not. Swell into bouton endings caused by the neurotransmitter substance. Grey and white matter (depending on length of axon) Sometimes myelin sheath: protects the axon, made of lipid (fat) material insulating material, speeds up transmission. Terminal endings (bouton endings: stores neurotransmitters. Either excitatory or inhibitory: releases neurotransmitters across a synaptic gap. Pre-synaptic cell releases chemicals across the gap to the receptors on the post-synaptic cell: golgi & ramon y cajal. Discovered nerve cells could be stained to view them. Cajal was an artist who drew pictures about neuroscience for textbooks.