PSYC 2510 Lecture Notes - Melatonin, Cerebellum, Midbrain

• School: York University
• Department: Psychology
• Course: PSYC 2510
• Professor: Richard N Lalonde

Document Summary

Central nervous system (processes, interprets, stores information; issues orders to. Peripheral nervous system (transmits information to and from the cns) muscles, glands & organs. Autonomic nervous system (controls skeletal muscles) (regulates glands, blood vessels, internal organs. The central nervous system: brain, spinal cord. Nervous system (mobilizes body for action, energy output) Nervous system (conserves energy, quiet state) from the base of the brain down the center of the back: protected by spinal column. Communication in the nervous system: neurons (nerve cells): workers transmit info, glial cells: bodyguards -- feed & protect. Structure of a neuron: dendrites - receive info from other neurons and transmit to cell body, cell body - contains nucleus; decides to fire or not to fire , axon - conducts impulses (fire signal) away from cell body. Structure of a neuron: myelin sheath, fatty insulation from glial cells surrounding axon, multiple sclerosis: loss of myelin causes erratic signals.