Glial Cells
Glial cells are specialized cells of the nervous system that support and protect neurons, the main cells of the brain and spinal cord. They are the most abundant cells in the brain and make up approximately 50% of the brain's total cells. Glial cells help to provide nutrition to the neurons, maintain homeostasis of the brain's environment, form myelin sheaths that insulate and protect neurons, and help to regulate neuronal activity. They also help to maintain the blood-brain barrier which prevents toxins and other unwanted substances in the bloodstream from entering the brain. Glial cells are important for a healthy functioning brain and are necessary for normal development and normal brain function throughout life.
← Journal of Brain And Spinal Cancer