Neuroglia Online

: The most abundant glial cells. They maintain the blood-brain barrier, regulate the chemical environment (like potassium ions), and provide nutrients like lactate to neurons.

: Function similarly to oligodendrocytes by forming myelin sheaths around axons in the PNS, but also aid in nerve regeneration. neuroglia

: The brain’s resident immune cells. They act as macrophages, scavenging for dead cells, debris, and pathogens. : The most abundant glial cells