Supporting cells in the CNS are “lumped together”
neuroglia
“nerve glue,”
glial cells or glia
abundant star-shaped cells that account for nearly half of neural tissue
Astrocytes
spiderlike phagocytes that monitor the health of nearby neurons and dispose of debris, such as dead brain cells and bacteria
Microglia
neuroglia that line the central cavities of the brain and the spinal cord
Ependymal cells
neuroglia that wrap their flat extensions (processes) tightly around CNS nerve fibers, producing fatty insulating coverings
Oligodendrocytes
fatty insulating coverings
myelin sheaths
most brain tumors are ____, or tumors formed by neuroglia
gliomas
form the myelin sheaths around nerve fibers in the PNS
Schwann cells
s protective, cushioning cells for peripheral neuron cell bodies.
Satellite cells