selkäydinnesteessä

Selkäydinneste, also known as cerebrospinal fluid (CSF), is a clear, colorless fluid that surrounds the brain and spinal cord. It is produced by specialized cells in the ventricles of the brain called the choroid plexus. CSF plays a vital role in protecting the central nervous system (CNS) by acting as a shock absorber, cushioning the brain and spinal cord from physical injury.

Beyond its protective function, CSF also contributes to the nourishment of the CNS by transporting nutrients and removing waste products. It helps to maintain a stable chemical environment within the CNS, which is crucial for optimal neuronal function. The pressure of the CSF is also an important factor in maintaining the structural integrity of the brain and spinal cord.

The composition of CSF can be analyzed through a procedure called a lumbar puncture, often referred to as a spinal tap. This analysis can provide valuable diagnostic information about various neurological conditions, including infections like meningitis, inflammatory diseases, and certain types of cancer that may affect the CNS. Changes in the color, clarity, or chemical makeup of CSF can indicate the presence of disease. The normal flow and circulation of CSF are essential for maintaining brain health.