PSY 1101 Study Guide - Jargon, Spinal Cord, Fluid Compartments
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PSY 1101 Full Course Notes
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I: function and structure: everything psychological is physiological! All nerves outside cns: each system has specific functions, these 2 systems work together as a single unit. Function: complex communication network, receives information from environment, takes information and analyses, organizes, interprets, etc, uses information to send out messages, the nervous system creates a conscious experience. Neurons: basic function and structure, neurons are the basic unit of communication, 3 types of neurons , sensory neurons (receive information, motor neurons (carry out messages to muscles, interneurons (only in cns. They only communicate with other neurons: basic structure, cell body soma. The control centre of the neuron; it produces everything the neuron needs: dendrites: Two main functions: to increase surface area for soma & receive messages from other neurons: axon: Carries action potential (nerve impulse): axon branches, terminal buttons (axon terminals): Forms junctions with other cells: myelin sheath: White fatty-like substance that covers some axons. This provides insulation and speeds up transmission: synapse:
