It is a generic term for suddenly occurring interrupted blood supply to the brain resulting from a blood clot occurring in the brain, a blood clot breaking free from somewhere in the body and getting stuck in the brain, or a cerebral haemorrhage in which a cerebral artery bursts.

Make this lower case.
it is a generic term for suddenly occurring interrupted blood supply to the brain resulting from a blood clot occurring in the brain, a blood clot breaking free from somewhere in the body and getting stuck in the brain, or a cerebral haemorrhage in which a cerebral artery bursts.