PSY100H1 Chapter Notes - Chapter 3: Axon Hillock, Periaqueductal Gray, Axon Terminal
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PSY100H1 Full Course Notes
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Module 3. 2 how the nervous system works: cells and neurotransmitters. Drowsiness difficulties controlling head and neck muscles difficulty swallowing tightness of chest breathing paralysis coma death: not all snake venoms attack the nervous system. The venom in most rattlesnakes in north america is not neurotoxic. Cells (especially nervous system cells) play an important role in almost everything you do: moving, sensing, thinking, feeling. Human body is composed of many different cells. Psychologists are most interested in neurons: neurons: one of the major types of cells found in the nervous system, that are responsible for sending and receiving messages throughout the body. Primary purpose: to (cid:862)fire(cid:863: to receive input from one group of neurons and to then transmit that information to other neurons. Single neurons work together as part of networks involving thousands-millions of other cells: these networks lead to some type of behavior to occur. There are parts of neurons that are specialized for receiving incoming info from other neurons.
