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phagocytosis of debris (dead cells, bacteria, etc)


form myelin around axons in the CNS


support the neurons; may serve nutritive function and help regulate the chemical environment on the neurons


line cavities of the brain (and spinal cord); aid in circulation on cerebrospinal fluid

ependymal cells

what is the PNS glial cell that forms myelin?

Schwann cell

what is the PNS glial cell that surrounds dorsal root ganglion neurons?

satellite cell

the brain and spinal cord colletively

central nervous system

speicalized supporting cells in the CNS


junction or point of the close contact between neurons


a bundle of nerve processes inside the CNS


neuron serving as part of the conduction pathway between sensory and motor neurons


ganglia and spinal and crainal nerves

peripheral nervous system

collection of nerve cell bodies found outside the CNS


neuron that conducts impulses away from the CNS to muscles and glands

efferent neuron

neuron that conducts impulses toward the CNS from the body periphery

afferent neuron

chemical released by neurons that stimulate or inhibit other neurons or effectors


region of the cell body from which the axon originates

axon hillock

secretes neurotransmitters

axon terminal

receptive region of a neuron


insulates the nerve fibers

myelin sheath

site of the nucleus and is the most important metabolic a area

neuronal cell body

maybe involved in the transport of substances within the neuron


essentially rough endoplasmic reticulum, important metabolically

Nissl bodies

impulse generator and transmitter


what substance is found in synaptic vesicles of the axon terminal?


what neuron types are unipolar?

sensory neuron

what neuron is most likely multipolar?

motor neuron, interneuron

surrounds axon


surrounds a bundle of axons


surrounds all of the axons contributing to a nerve


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