PSY 1101 Chapter Notes - Chapter 2: Central Nervous System, Peripheral Nervous System, Myelin

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1101
• Professor: A L L

Document Summary

Biological psychology: branch concerned with the links between biology and behaviour. Central nervous system (cns) brain and spinal cord. Peripheral nervous system (pns) nerves outside of cns. Both are highly specialized and work together as a single unit. Receives information from both internal and external world. Use information in order to send messages to muscles (ex. controlling movements) Sensory neurons = collect info from external world and send to cns. Motor neurons = carry messages from cns to muscles/glands. Interneurons = only found in cns and only communicate with other neurons. Basic structure grow soma, of neuron, branches of control) Nucleus of cell, dna, manufactures all neuron needs to survive, and repair itself. Thin structures extend from cell body, increase surface area of receive messages from other neurons, bushy branching extension a neuron. Thin tube-like structure, carries messages from soma to other carries electrical impulses. Release the neurotransmitter, little buttons at the end of axon.