PSYC 100 Study Guide - Midterm Guide: Positron Emission Tomography, Visual Cortex, Auditory Cortex

• School: Simon Fraser University
• Department: Psychology
• Course: PSYC 100
• Professor: Allan Matadeen

Document Summary

Neuron: single cell within the nervous system, group of neurons form a nerve, tend to cluster, nerve cell, conduct electrochemical signals, electrically excitable cells, basic unit of nervous system. Coordinates the information-processing tasks and keeps the cell alive. Receive information from other neurons and relay it to the cell body: axon. Carries information to other neurons, muscles, or glands: myelin sheath. Helps efficient transmission of signals to other cells. Gap in myelin sheath = nodes of ranvier. Damage to myelin sheath = vision problems, loss of feeling in the limbs, lack of coordination, muscle problems . Demyelinating diseases deteriorate the myelin sheath, slowing the transmission information from one neuron to another i. e. multiple. Support cells found in the nervous system. Surround neurons and hold them in place: synapse. The junction or region between the axon of one neuron and the dendrites or cell body of another. Presynaptic neuron axons end in terminal buttons.