The meninges are the tissues that cover and protect the brain and spinal cord. The meninges have the pia mater that is close to the brain, the spider web-like middle layer is called arachnoid mater, and the outermost and toughest layer is called the dura mater. It acts like a cushion for the brain, it sends nutrients to the brain and removes toxins from the brain.
Answer:
A condition in which the kidneys suddenly can't filter waste from the blood.
Acute renal failure develops rapidly over a few hours or days. It may be fatal. It's most common in those who are critically ill and already hospitalised
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