PSY 2301 Lecture Notes - Lecture 3: Axon Hillock, Neuroglia, Peripheral Nervous System

• School: University of Ottawa
• Department: Psychology
• Course: PSY 2301
• Professor: Andra Smith

Document Summary

What are the units of nervous system function. Neurons are actually the units of brain function. Stain individual neurons and see where they project and where they connect and what they communicate with. Branches that come out and take in info from neighbouring neurons. In your hippocampus and olfactory area new neurons can be generated. The more you have (surface area) more potential communication. Goes into soma (decides to fire or not) Then the action potential starts at the axon hillock. Juncture of soma and axon where axon stars. Terminal button - neurotransmitter is released, neighboring neurons pick up info here. Usually between end foot of the axon and dendrite spine of another neuron. Dendrite -> cell body - > axon hillock -> axon -> end foot. Associate sensory and motor activity within the cns. Send signals from the brain and spinal cord to muscles. Really long axon from your brain to spinal cords.