cerebrospinal fluid
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May 13, 2025
Cerebrospinal fluid (CSF) is a clear liquid that cushions and protects your brain and spinal cord. It circulates through the brain's ventricles and around the spinal cord, providing shock absorption and removing waste products. The fluid also delivers nutrients and immune cells to the central nervous system.
Doctors can extract a sample through a lumbar puncture (spinal tap) to test for infections, bleeding, or neurological diseases. A normal adult has about 150 milliliters of CSF circulating at any time.
Doctors can extract a sample through a lumbar puncture (spinal tap) to test for infections, bleeding, or neurological diseases. A normal adult has about 150 milliliters of CSF circulating at any time.
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