PSYC 3250 Study Guide - Final Guide: Enkephalin, Locus Coeruleus, Brainstem

• School: York University
• Department: Psychology
• Course: PSYC 3250
• Professor: J De Souza

Document Summary

Dopamine is released to help with the transmission of a message. Agonist: a drug that facilitates the effects of a particular neurotransmitter on the postsynaptic cell. Electrical gradient or polarization a difference in electrical charge between the inside and outside of the cell. And become refractory (absolute refractory)-- the absolute refectory period the membrane cannot produce an action potential regardless of the stimulation (4) the membrane becomes hyperpolarized as k+ ions continue to leave the cell. The hyperpolarized membrane is in a refractory period and cannot fire. causes membrane p to return to resting level--(the inside of the cell becomes positively charged and the outside becomes negatively charged. ) Communication between neurons these messages are carried by a neurotransmitter and released by terminal buttons. N. t diffuse across fluid filled gap between terminal buttons & membranes of neurons with which they form synapses.