context: All vertebrates have a blood–brain barrier that allows metabolism inside the brain to operate differently from metabolism in other parts of the body. Glial cells play a major role in brain metabolism by controlling the chemical composition of the fluid that surrounds neurons, including levels of ions and nutrients.
question: ఏ రకమైన కణాలు మెదడు జీవక్రియలో కీలక పాత్ర పోషిస్తాయి?
answers: Glial cells