What is the most common glial cell in the nervous system?

A) satellite cells
B) astrocyte
C) microglia
D) oligodendrocytes

Astrocytes are the most common type of glial cells in the nervous system, making up about 50% of all glial cells. They perform various functions such as providing structural support, regulating chemical balance, and participating in neural communication. Satellite cells are mostly found in the peripheral nervous system, microglia are immune cells that act as the first responders to damage or infection in the nervous system, and oligodendrocytes produce myelin sheath in the central nervous system.