What is Contained Within the Ventricles of the Brain?
The ventricles of the brain contain cerebrospinal fluid (CSF). The structure concerned with the production of cerebrospinal fluid is called choroid plexus, which can be found in the lateral, third and the fourth ventricle of the brain. This structure contains the modified ependymal cells, which produce cerebrospinal fluid. CSF flows from the lateral ventricles to the third ventricles through the foramina of Monro or intraventricular foramen. Then CSF flows into the fourth ventricle through the cerebral aqueduct and from there, it enters the central canal of the spinal cord or the cisterns of the subarachnoid space through the foramen of Magendie and the the foramina or Luchka. Ultimately, CSF flows around the superior sagittal sinus, where it is absorbed by the bloodstream through the structures, called arachnoid villi. The arachnoid villi act as one way valves, which allows the CSF to pass into the bloodstream, when pressure of CSF greater than the venous pressure. But, they does not
