GENERAL HISTOLOGY

Detailed explanation-1: -These are the glial cells (neuroglial cells), together termed the neuroglia. Supporting, or glia, cells bind neurons together and insulate the neurons. Some are phagocytic and protect against bacterial invasion, while others provide nutrients by binding blood vessels to the neurons.

Detailed explanation-2: -Astrocytes are star-shaped glial cells that have numerous processes extending from them. Their foot processes are an important component of the blood-brain barrier. The branching of astrocytic processes enables their contact with many neuronal soma, dendrites, and axons simultaneously.

Detailed explanation-3: -Neuroglia are a large class of neural cells of ectodermal (astroglia, oligodendroglia, and peripheral glial cells) and mesodermal (microglia) origin. Neuroglial cells provide homeostatic support, protection, and defense to the nervous tissue.