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ch 9

cells of nervous sytem and nerves+ tracts

QuestionAnswer
glia (neuroglia) support cells, brining cells of nervous tissue tg structurally and functionally
astrocytes star shaped, anchor small blood vessels to neurons, and support neurons, nutrients and the blood-brain barrier
microglia small cells that move in inflamed brain tissue and remove debris and infection (carrying on phagocytosis)
ogliodendrocytes form myelin sheaths on axons in CNS
myelin speeds up signals
schwann cells form myelin sheaths on axons in PNS
nerves bundle of peripheral axons PNS
tracts bundle of central axons CNS
white matter tissue composed of myelinated axons (nerves or tracts)
gray matter tissue composed of cell bodies and unmyelinated cells and info processing happens here.
nerve coverings fibrous connective tissue
endosteum surrounds individual fibers in a nerve
perinerium surrounds fascicle (group) of nerve fibers
epineurium surrounds entire nerve
Created by: b.marshall
 

 



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