PSYC 1000 Lecture 3: Chapter 3 - Neuroscience

• School: University of Guelph
• Department: Psychology
• Course: PSYC 1000
• Professor: Anneke Olthof

Document Summary

Module 3. 3: organization of the brain and nervous system. The neuron: two main categories of cells, glial cells, found throughout the nervous system, provide structural support, nourishment and insulation to the neurons, neurons, directly involved in communication, receive, integrate and transmit information to and from other. Resting potential: resting potential - if an axon is not sending or receiving any signals, then it is negatively charged at about -70mv, two reasons for negative charge when neuron is in this balanced, resting state, concentration gradient: 2: the tendency for molecules, which are always in motion, to distribute themselves evenly in their environment, will move from high concentration to low, and low to high, electrostatic gradient: Action potential: na+ ions would rush into the cell, this is basically what causes an action potential, a sudden and brief increase in the permeability of the cell"s membrane to.