What Is Meningitis?
In defining what is meningitis, it is a disease of the brain and the spinal cord. It is thus a cerebral-nervous condition. It involves swelling of the meninges. Meninges are membranes surrounding the brain and the spinal cord. When these membranes become inflamed, they interfere with the smooth floor of blood to the brain tissues and the spinal cord. The disease is caused by viral and bacterial infections that cause the inflammation to occur. Typically the swelling occurs as the body immune system releases chemicals to fight the perceived virus and bacteria. Meningitis is also caused by conditions that induce soreness of tissues of the body without infections. The swelling of the meninges membranes result to weakened function of the brain and the spinal cord. Swelling of the membranes presses the blood vessels supplying and drawing blood to and from the brain respectively. A person suffering from meningitis experiences severe headache due to constriction of the blood vessels wher...