Final answer:
Glia are neural cells that provide support and various functions in the nervous system. Astrocytes regulate ion concentrations, microglia play a role in neuro-immune function, and oligodendrocytes form myelin sheaths.
Step-by-step explanation:
Glia are a type of neural cells that have a vital role in the nervous system. They provide support and various functions necessary for the proper functioning of neurons. Regarding the statements, the following is/are TRUE:
- (B) Glia, specifically astrocytes, regulate the concentrations of ions and chemicals in the extracellular fluid, providing nutrients and structural support for synapses.
- (C) Glia, including microglia, play a role in the neuro-immune function by scavenging and degrading dead cells and protecting the brain from microorganisms.
- (D) Oligodendrocytes are a type of glia that form myelin sheaths along the axons of the neurons in the central nervous system (CNS).