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# Different types of Glial Cells and their Functions The image displays various types of glial cells in the central nervous system (CNS) and their functions. Glial cells are non-neuronal cells that maintain homeostasis, form myelin, and provide support and protection for neurons. ## Types of Glial...

# Different types of Glial Cells and their Functions The image displays various types of glial cells in the central nervous system (CNS) and their functions. Glial cells are non-neuronal cells that maintain homeostasis, form myelin, and provide support and protection for neurons. ## Types of Glial Cells and their Functions **1. Astrocytes** * **Functions:** * Helps form the blood-brain barrier * Regulates interstitial fluid composition * Provides structural support and organization to the CNS * Assists with neuronal development * Alters synaptic activity * Replicates to occupy space of dying neurons **2. Ependymal cells** * **Functions:** * Lines ventricles of brain and central canal of spinal cord * Assists in production and circulation of the cerebrospinal fluid (CSF) **3. Microglial cells** * **Functions:** * Phagocytizes substances in the CNS * Protects the CNS by engulfing infectious agents and other potentially harmful substances **4. Oligodendrocytes** * **Functions:** * Myelinates and insulates CNS axons * Allows faster action potential propagation along axons in the CNS **Diagram:** The diagram illustrates these different cell types in a detailed three-dimensional layout. The image shows their shape and how they relate to blood vessels, neurons and other components of the nervous system. Different parts of the glial cells are labelled with their appropriate names and each group of cells is highlighted with a different color.