What Is Cerebrospinal Fluid Circulation?

There is no lymph fluid in the central nervous system. Instead, it is cerebrospinal fluid (CSF), which is a colorless transparent fluid that fills the ventricular system, subarachnoid space, and central spinal cord.

Cerebrospinal fluid circulation

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Cerebrospinal fluid is mainly produced by the ventricular choroid plexus, and a small amount is produced by the epithelial epithelium and capillaries.

The cerebrospinal fluid produced by the lateral ventricle choroid plexus flows through the interventricular foramen to the third ventricle. Together with the cerebrospinal fluid produced by the third ventricle choroid plexus, it flows into the fourth ventricle via the midbrain water duct, and then merges with the cerebrospinal fluid produced by the fourth ventricle choroid plexus through the The median fora of the four ventricles and the two lateral foramen flow into the subarachnoid space, and then the cerebrospinal fluid flows along this space to the subarachnoid space on the back of the brain, penetrates into the dura sinus (mainly the superior sagittal sinus) through the arachnoid grains, and returns Into the blood.

That is: cerebrospinal fluid produced by the left and right ventricle choroid plexus via the interventricular foramen

1. Protect the brain and spinal cord from external oscillatory damage;

2. Adjust intracranial pressure;

3. Participate in brain and spinal cord metabolism;

4. Maintain normal pH.