NEUR 3403 Lecture Notes - Lecture 5: Cannabinoid, Learned Helplessness, Cortisol
4 Sep 2016
School
Department
Course
Professor
Document Summary
Behaviour depends on rapid information travel and processing the nervous system is the body"s communication network, handling information just as the circulatory system handles blood. The basic components of the nervous system are living cells called neurons and glia. Glia are cells that provide structure and insulation for neurons neural glue. Neurons are cells that receive, integrate, and transmit information permitting communication in the nervous system. Oligodendrocytes insulate axons, ependymal, schwann, microglia, astrocytes (clean up excess nt release) Microglia: non activated activated (ameboid/condensed form) phagocytic (macrophage) engulf neurons etc, marker of neurodegeneration, seen in. Capable of conducting electrical impulse down the axon (propagate impulse) Chemicals that carry messages from one neuron to another across the synapse. Can cause change in nucleus of cell, or translation of protein. Protein molecules that receive and translate the chemical message. Dopaminergic system (da): active in maintaining normal motor behaviour.
