PSYC 100 Chapter Notes - Chapter 5-6: Inferior Frontal Gyrus, Axon Terminal, Motor Neuron

• School: Queen's University
• Department: Psychology
• Course: PSYC 100
• Professor: Jordan Poppenk

Document Summary

Central nervous system: (a) the brain, (b) the spinal cord. Peripheral nervous system: (a) skeletal nervous system, (i) sensory or afferent, (ii) motor or efferent, (b) autonomic nervous system, (i) sympathetic, (ii) parasympathetic. The skeletal portion controls the various muscles, relaying motor commands from the brain. The autonomic nervous system controls "involuntary" muscles ie. heart and many internal organs ie. the viscera - it is especially important for maintaining homeostasis. Glia also supply oxygen and nutrients to neurons, remove dead cells and germs, and importantly serve as protective insulation around the axons of neurons, also recent evidence suggests that glia also participate in communication to the. 7. also recent evidence suggests that glia also participate in communication to the brain. Glial cells greatly outnumber neurons and there"s a lot yet to be discovered about their function. Cell body - contains structures that maintain cell health and metabolism. Nucleus - contains genes (dna) and directs the manufacture of the proteins that.