PSY100Y5 Chapter Notes - Chapter 3: Zygosity, Laterality, Visual Cortex
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PSY100Y5 Full Course Notes
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Document Summary
Neurons are individual cells in the nervous system that receive, integrate, and transmit information. Soma (cell body) contains the cell nucleus and much of the chemical machinery common to most cells. Rest of neuron dedicated to handling info. Dendrites branches that are specialized to receive info from other cells. Axon fibre that carries signals away from soma to other cells. Myelin sheath insulating material that encases some axons, may speed up transmission of information. Terminal buttons small knobs at ends of axons that release neurotransmitters at synapses: synapse point at which neurons connect. Junction where info is transmitted from one neuron to another. Gila are cells found throughout the nervous system that provide various types of support for neurons. The neural impulse: using energy to send information. The nueron at rest: a tiny battery: neural impulse is a complex electrochemical reaction, the resting potential of a neuron neuron s stable, negative charge when inactive.
