PSYC 100 Chapter Notes -Cerebellum, Primary Motor Cortex, Brainstem

• School: Queen's University
• Department: Psychology
• Course: PSYC 100
• Professor: Rana Pishva

Document Summary

Central nervous system: composed of neurons and glia. Glia serve supportive and protective functions for neurons: brain. Interprets and stores information, sends orders to muscles: spinal cord. Pathway connecting the brain and the peripheral nervous system. Peripheral nervous system: skeletal (somatic) nervous system. Controls various muscles, relaying motor commands from the brain. Motor/efferent (carries messages away from cns: autonomic nervous system. Sympathetic: prepares body to react and expend energy in times of stress (fight or flight), inhibits digestion. Parasympathetic: maintains body functions under ordinary conditions; saves energy. Neuron: takes in information from other neurons (at dendrites and cell body, sends information to other neurons (via axon, sensory/ afferent neuron. Sends signals from body to brain: motor/ efferent neuron. Sends signals from brain to body: interneuron. Link sensory/motor neurons; integrate and communicate information rather than transmit information between brain and body. Nerve: refers to a bundle of axon fibres, transmit information within pns, and between pns and cns.