PSYB65H3 Chapter Notes - Chapter 2: Autonomic Nervous System, Active Transport, Microglia
Document Summary
Humans > specialized cells that perform specialized functions. Neurons [communicators] and glia [support] cells are specialized cells of the nervous system [structure and function] Neurons > react to stimuli and are the basis of beh. Gross anatomy of the neuron shape of neuron > related to its function [receive, conduct, transmit signals] 3 main compents: dendrites > receives info from other neurons increases surface area available for the reception of signals form axons of other neurons info sent to the rest of the neuron as a electrical charge. Can divide to increase num of synapses. Covered with insulation, myelin long thin fiber > can send info to many cells simulataneously. Speeds rate of info transfer/ensures msg get to end. End of a axon, terminal button info sent from button across synapse to dendrite info sent across the axon to is in the form of neurotransmitter.
