Listen to pronunciation. (KOR-oyd PLEK-sus) A network of blood vessels and cells in the ventricles (fluid-filled spaces) of the brain. The blood vessels are covered by a thin layer of cells that make cerebrospinal fluid.

What is the function of the choroid plexus?

The choroid plexus (ChP) is a secretory tissue found in each of the brain ventricles, the main function of which is to produce cerebrospinal fluid (CSF).

What is the choroid plexus and what does it secrete?

The choroid plexus is a complex tissue configuration made up of epithelial cells, capillaries (tiny blood vessels), and connective tissue that lines the ventricles of the brain. Its function first and foremost is to secrete cerebrospinal fluid (CSF), a clear fluid that protects the brain and spinal cord.