Psychology 1000 Study Guide - Midterm Guide: Erectile Dysfunction, Testicle, Amygdala

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Michael Atkinson

Document Summary

Depolarization this shift from negative to positive voltage: dendrites are stimulated by axons of other neurons, na+ ions flow into the neuron by action of ion channels, making the membrane voltage more positive (depolarization, sodium channels close and potassium channel open, allowing k+ ions to exit and restoring the resting potential, action potential moves down length of neuron. This happens in 5 steps: synthesis chemical molecules are formed inside the neuron, storage molecules are stored in chambers called synaptic vesicles wihin the axon terminals, release when action potential comes down axon, these vesicles move to surface and molecules are released into the fluid between. t he axon of the sending (presynaptic) neuron and the membrane of the receiving (postsynaptic) neuron, binding the molecules cross synaptic space and bind to receptor sites: large protein molecules embedded in the receiving neuron"s cell membrane, deactivation.