PSY 2301 Chapter Notes - Chapter 3: Schwann Cell, Axon Hillock, Neuroglia
Document Summary
Chapter 3: functional units of the nervous system. Cajal"s neuron theory: neurons are the functional units of the nervous system , this includes the idea that it is the interactions between these discrete cells that enables behaviour. 3 divisions of a neuron: cell body/soma : core region, dendrites: neurons branching extensions- collect information from other cells one axon but many dendrites per neuron, axon: carries messages to other neurons. Information processing neurons acquire information from sensory receptors, pass the information on to other neurons, and make muscles move to produce behaviour: at the same time, they regulate body processes such as breathing, heartbeat, and body temperature. Cell body (soma): core region of the cell containing the nucleus and other organelles for making proteins. Axon: "root" or single fibre of a neuron that carries messages to other neurons. Synapse: junction between one neuron and another that forms the information transfer site between neurons.
