Question

Name the six types of neuroglial cells, indicate if they are part of CNS or PNS, and list their primary functions.

Answer 1

Answer

1) Astrocytes : They are part of CNS.
Function : They facilitate formation of blood brain barrier.
They provide structral support to neurons.
They reabsorb neurotransmitters.

2) Oligodendrocytes : They are part of CNS.
Function : They produce myelin sheath in neurons of central nervous system (braina nd spinal cord).

3) Ependymal cells : They are part of CNS.
Function : They produce and monitor cerebrospinal fluid.
They line cerebral ventricles.

4) Microglia : They are part of CNS.
Function : They act as macrophages and digest debris, dead neurons and foreign particles in the brain and spinal cord.

5) Schwann cell : They are part of PNS.
Function : They produce myelin sheath in peripheral nervous system (spinal and cranial nerves).
They also helps in regeneration of a nerves following damage.

6) Satellite cell : They are part of PNS.
Function : They suuport the cell bodies in peripheral nervous system.
They regulate levels of gases (oxygen and carbon dioxide) and nutrients surrounding the neurons.