: These cells produce myelin , a fatty sheath that wraps around axons to speed up electrical signals.
: The brain’s resident immune cells. They act as macrophages, scavenging for dead cells, debris, and pathogens. neuroglia
: Surround neuron cell bodies in ganglia to provide physical support and regulate their chemical environment. : These cells produce myelin , a fatty
Neuroglia, often called the "unsung heroes" of the nervous system, are non-neuronal cells that outnumber neurons and provide the essential support framework for the brain and spinal cord. While neurons handle information processing, neuroglia manage everything from immune defense to the physical insulation of nerve fibers. 🧠 Major Types of Neuroglia : Surround neuron cell bodies in ganglia to
: Function similarly to oligodendrocytes by forming myelin sheaths around axons in the PNS, but also aid in nerve regeneration.
: These line the brain's ventricles and help produce and circulate cerebrospinal fluid (CSF) using hair-like cilia. Peripheral Nervous System (PNS)