Gastroscopy helps your doctor evaluate various symptoms that include persistent upper abdominal pain, nausea, vomiting or difficulty swallowing. It is an excellent test for finding and treating the cause of bleeding from the upper gastrointestinal tract.astroscopy helps your doctor evaluate various symptoms that include persistent upper abdominal pain, nausea, vomiting or difficulty swallowing. It is an excellent test for finding and treating the cause of bleeding from the upper gastrointestinal tract.
Cerebrospinal fluid (CSF) is a watery fluid that circulates through the brainâs ventricles (cavities or hollow spaces) and around the surface of the brain and spinal cord. A CSF leak is a condition that occurs when the CSF leaks through a defect in the dura or the skull and out through the nose or ear.erebrospinal fluid (CSF) is a watery fluid that circulates through the brainâs ventricles (cavities or hollow spaces) and around the surface of the brain and spinal cord. A CSF leak is a condition that occurs when the CSF leaks through a defect in the dura or the skull and out through the nose or ear.
Split and merge into it. Answered by The Community. Making the world better, one answer at a time. The fluid that circulates through the ventricles of the brain, the central canal of the spinal cord and the subarachnoid spaces is cerebrospinal fluid (CSF).CSF is an ultrafiltrate of blood plasma, produced in the choroid plexus in the ventricles and basal cisterns.nswered by The Community. Making the world better, one answer at a time. The fluid that circulates through the ventricles of the brain, the central canal of the spinal cord and the subarachnoid spaces is cerebrospinal fluid (CSF).