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cranial nerves are part of which nervous system
peripheral nervous system
contents of the CNS
brain and spinal cord
nervous system that lays inside the bony vertebral column
CNS
nervous system structures outside the vertebral column and skull
PNS
main function of ANS
provide internal homeostasis
rostral
towards the head
caudal
towards the tail
dendrite
part of neuron that picks up information
myelin
coats and insulated axons
astrocytes
form supporting networks in the brain
metabolic functions
forms scars in response to injury
location of astrocytes
CNS
oligodendrocytes
forms myelin sheath around axons of nerves
location of oligodendrocytes
CNS
microglia
engulf and remove cellular debris
location of microglia
CNS
ependymal cells
line the ventricles direct CSF flow
location of ependymal cells
CNS
schwann cells
forms myelin sheath around axons of nerves
location of schwann cells
PNS
grey matter
made up of cell bodies
ganglia
similar collections of neuronal cell bodies in the PNS
white matter
formed by neuronal axons
myelin sheath has a lot of fat and looks white
tract or fasciculus
collection of nerve axons that transmits similar information
afferent
towards the reference cell
typically sensory
efferent
away from the reference cell
typically motor
central canal
fluid filled cavity of the neural tibe
Note 
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