PSYC 100 Lecture Notes - Lecture 5: Peripheral Nervous System, Autonomic Nervous System, Sensory Neuron

• School: Queen's University
• Department: Psychology
• Course: PSYC 100
• Professor: Jordan Poppenk

Document Summary

Describe the divisions of the nervous system. Central nervous system (cns: brain, spinal cord. Transmits sensory information from the body to the cns, as well as other information from the cns to the muscles, glands, internal organs etc: skeletal nervous system control of muscles, voluntary. Motor (efferent: autonomic nervous system controls involuntary muscles (heart, diaphragm, internal organs etc. ) A functional behaviour used by the sensory, motor and interneurons to move the body away from pain: 5 steps. Receptor sensory neuron integration centre motor neuron. Glia supportive role, supply oxygen/nutrients to neurons, serve as protective insulation around the axons of neurons. Neurons specialized cells that transmit information. Sensory neurons (afferent neurons) detect information from the physical world and send it to the brain. Motor neurons (efferent neurons) direct muscles (tell them to relax or contract) Interneurons any neuron that isn"t a sensory or motor neuron. Describe the structure of the neuron and define the action potential.