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Glossary of Anatomy Lesson 7 Terms Flash Cards

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Synapse
The Space between the axon of one neuron and dendrite of another
Dendrite
One or more projections or processes that transmit impulses to cell body
Axon
An enlongated projection that transmits impulses away from the cell body
Oligodendroglia
Holds nerve fibrs together and produces myelin sheath in CNS
Astrocytes
Attaches neurons to small blood vessels in the brain
Nodes of Ranvier
Space between Myelinated areas of an axon, indentation between adjacent schwann cells
Nerve Impulses
Self Propogating waves of electrical disturbances
Ganglion
a group of nerve cell bodies in the PNS
Receptor
Begining of a dendrite
Effector
Muscle glands or organs that put nerve impulses into effect
Microglia
Small cells that carry on Phagocytosis and inflame brain tissue
Schwann Cells
Form myelin in the PNS
Afferent
Sensory neuron that transmits impulses to the brain from all parts of the body
Motor Neuron
Transmits impulses away from the brain and spinal cord
Interneuron
Conducts impulses from sensory and motor neurons, 99% of all neuron impulses

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