BSC 469 Lecture Notes - Lecture 11: Voltage, Adenylyl Cyclase, Cerebellum
8 Oct 2017
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Document Summary
Cells of the nervous system: neurons, specialized for communication, generate and conduct electrical impulses, longest neurons extend from the toe to the spinal cord, types of neurons, sensory, interneuron, motor. Sensory neurons: located in the peripheral nervous system, respond to environmental stimuli light, pain, pressure, provide input from environment and send impulses to the central nervous system. Interneurons: located in the central nervous system, receive input from sensory neurons. Motor neurons: located in the central nervous system and peripheral nervous system, carries the nervous system"s output to all of the tissues and organs of the body. Terminology: nuclei cluster of cell bodies in the cns, ganglia cluster of cell bodies in the pns, tracts bundle of processes in the cns, nerves bundle of processes in the pns. Oligodendrocyte: 75% glial cells, forms myelin sheath in cns, single cells can contribute to myelination of up to 50 axons. In the presence of appropriate stimuli, astrocytes become phagocytic.
