Definition
Macroglia are a type of glial cell that includes astrocytes, oligodendrocytes, and ependymal cells. They are larger than microglia and perform various supportive functions in the central nervous system. They help maintain the brain's environment, insulate neurons, and form the blood-brain barrier. Think of them as the construction crew and maintenance team for the nervous system's infrastructure. Macroglia are larger than other types of glial cells. Their function is key to neural support.