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Tuesday, 25 July 2017


The spinal cord and the brain make up the central nervous system (CNS) ; where sensory information is received and motor control is initiated. Both the spinal cord and the brain are protected by bones; the spinal is surrounded by vertebrae, and the brain is encased by the skull. Also, both the spinal cord and the brain are wrapped in protective membranes called meninges (singular: meninx). The spaces between the meninges are filled with cerebrospinal fluid; which cushions and protects the central nervous system. Meningitis is an infection of the meninges.

A small amount of fluid is sometimes withdrawn from around the spinal cord for laboratory testing when a spinal tap (lumbar puncture) is performed.

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