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Neuron (Support Cells (Ependymal Cells (line ventricle of brain, assist in…
Neuron
Support Cells
Ependymal Cells
line ventricle of brain
assist in the formation of CSF
Microglia
Phagocytic- protect CNS
Astrocytes
form blood brain barrier
Regulate K+ and neurotransmitter levels in ECF
Oligodendrocytes
Formation of myelin sheath in CNS
Schwann Cells
formation of myelin sheath in PNS
Axon
Axon Hillock
where axon leaves the cell body
Where action potential is generated
High concentration of voltage gated Na+ channels
Lowest threshold for activation
Contains nodes of ranvier
location of action potential regeneration
Axon Collaterals
Axon Terminals
Contain NT vesicles that transmit information (synapses)
Dendrites
Receive information from nerve cells
Contain receptors
Cell Body (Neurotransmitter)
Directs the synthesis of the cellular messenger