PSY270H1 Chapter 2: Chapter 2

• School: UTSG
• Department: Psychology
• Course: PSY270H1
• Professor: Christine Burton

Document Summary

Neural structure and function: neurons nervous system. Branches that receive information from other neurons. axon where signal can be transmitted to other neurons. Single axon, long thing tube that transmit electrical signals to the terminus (end) Myelinated or not myelinated, myelin fatty substance that surround some. 2 basic axons axons helps insulate and protect them from interference, also speeds up the conduction of information: myelin is not distributed evenly/continuously, it is broken into segments aka. Nodes of ranvier small gaps in myelin serve to increase conduction speed even more: multiple sclerosis degeneration of myelin sheaths along axons impairment in balance and corrdination. terminal button neuron), there is a small gap = synapse. Small knobs at the end of axons (they do not touch the dendrite of next: signal transmission between neurons occurs when the terminal button release neurotransmitters at the synapse, neurotransmitters chemical messengers for transmission of information.