PSY100Y5 Chapter 3: PSYChapter 3.doc

• School: UTM
• Department: Psychology
• Course: PSY100Y5
• Professor: Dax Urbszat

Document Summary

Chapter 3: the biological basis of behavior: communication in the nervous system, nervous tissue: the basic hardware. Chanaps: 2 major categories for cells in nervous system, glia cells found throughout the nervous system that provide structural support and insulations for neurons. Help maintain the chemical environment of the neurons: nuerons- the individual cells in the nervous sytem that receive, integrate, and transmit info. Insulating material, from glial cells, that encases some neurons. Speeds up transmissiono of info: multiple scleroris due to deterioration of myelin sheath. Terminal buttons small knobs that secrete chemicals called neurotransmitters. At end of axons in clusters: synapse point at which neurons connect. Inhibitory psp negative voltage change that decreases the likelihood: reuptake process in which neurotransmitters are sponged up from the synaptic cleft by the presynaptic membrane. Integrating signals: a balancing act: state of a neuron is the weighted balance between excitatory and inhibitory psp"s, neurotransmitters and behavior.