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at the ends of peripheral nerves gather information and convert it into nerve impulses

when -- are integrated in the brain as perceptions, this is the integrative function of the nervous system

fill spaces, support neurons, provide structural frameworks, produce myelin, and carry on phagocytosis. Four re in the CNS and the last in the PNS.

are small cells that phagocytize bacterial cells and cellular debris

from myelin in the brain and spinal cord

are near blood vessels and support structures, aid in metabolism, and respond to brain injury by filling in spaces.

cover the inside of ventricles and form choroid plexuses within the ventricles

are the myelin-producing neuroglia of the peripheral nervous system

has a cell body with mitochondria, lysosomes, golgi apparatus chromatophilic substance containing rER, and neurofibrils

include a solitary axon and numerous dendrites

carry impulses from other neurons toward the cell body

transmits the impulse away from the axonal hillock of the cell body and may give off side branches

larger axons are enclosed by ___ provided by schwann cells and are myelinated fibers

the outer layer of myelin is surrouned by a ___ made up of the cytoplasm and nuclei of the schwann cell

narrow gaps in the myelin sheath between schwann cells are called