11/22/2023 0 Comments Blood in spinal fluid in brainThey are interconnected via tight junctions, creating a blood-CSF barrier that helps control the composition of CSF. CP cells have dense microvilli present on their apical surface. This simple cuboidal epithelium surrounds clusters of fenestrated capillaries allowing for the filtration of plasma. The CP is a highly specialized, simple, cuboidal epithelium continuous with ependymal cells lining the ventricles of the brain. Seventy to eighty percent of CSF production is via a network of modified ependymal cells known as the choroid plexus (CP). The composition of CSF is strictly regulated, and any variation can be useful for diagnostic purposes. The reduction of CSF turnover may contribute to the accumulation of metabolites seen in aging and neurodegenerative diseases. The constant secretion of CSF contributes to complete CSF renewal four to five times per 24-hour period in the average young adult. In the adult population, its secretion varies between individuals, usually ranging from 400 to 600 ml per day. CSF is predominantly secreted by the choroid plexus with other sources playing a more poorly defined role. Adult CSF volume is estimated to be 150 ml, with a distribution of 125 ml within the subarachnoid spaces and 25 ml within the ventricles. It performs vital functions, including providing nourishment, waste removal, and protection to the brain. Cerebrospinal fluid (CSF) is an ultrafiltrate of plasma contained within the ventricles of the brain and the subarachnoid spaces of the cranium and spine.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |