Neuroglia (CNS and PNS)

Neuroglia

+cells that provide metabolic support and immune protection for neurons +make up 50% of brain mass

CNS Neuroglia: Ependymal Cells

+line the cerebrospinal fluid-containing cavities of the brain and spinal cord +assist in producing, circulating and monitoring the CSF

CNS Neuroglia: Astrocytes

+most abundant glial cells +give nervous tissue structural support +connect between neurons and capillaries +regulate chemical environment

CNS Neuroglia: Microglia

+play a protective role similar to macrophages of the immune system +monitor the health of neurons

Oligodendrocytes:

+provide myelination in the central nervous system

Neuroglia of the PNS:Satellite Cells

+surround the soma of neurons in peripheral ganglia +help regulate and stabilize the environment around neuron cell bodies in the PNS

Neuroglia of the PNS : Schwann cells

provide myelination in the peripheral nervous system