The choroid plexus is a network of cells located in the ventricles of the brain. Its primary function is to produce cerebrospinal fluid (CSF), which cushions the brain and spinal cord, providing protection and maintaining a stable environment. The choroid plexus is made up of specialized epithelial cells and blood vessels that filter blood to create CSF. In addition to producing CSF, the choroid plexus plays a role in regulating the composition of this fluid. It helps remove waste products and maintain the balance of ions and nutrients essential for proper brain function. The health of the choroid plexus is crucial for overall neurological well-being.