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Nervous System (CNS (Neuroglia (Oligodendrocytes
-Nodes of ranvier
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Nervous System
CNS
Neuroglia
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Ependymal cells
-simple cuboidal/columnar epithelium with microvilli and cilia
-produce CSP and helps circulate it in ventricles
-lines central cavity of brain and spinal cord
Microglia
-small phagocyte
-mobil
-defending agent, invaders and decomposing damaged neural tissue
Astrocytes
-largest, most abundant
-maintain chemical environment
-processes contact blood vessels and neuron processes
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Gray Matter
-neuron cell bodies
-dendrites, unmyelinated axons,
axon terminals, no myelin
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PNS
Neuroglia
Satellite cell
-structure support
-surrounds neuron cell bodies in ganglion
-regulates exchange of materials from neuron cell body and environment
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Brain
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Nerves
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Spinal Nerves
-carries motor, sensory, and autonomic signals
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