NEET PG DENTAL EXAM

Detailed explanation-1: -The choroid plexus is a complex network of capillaries lined by specialized cells and has various functions. One of the primary functions is to produce cerebrospinal fluid (CSF) via the ependymal cells that line the ventricles of the brain.

Detailed explanation-2: -CSF is secreted by the CPs located within the ventricles of the brain, with the two lateral ventricles being the primary producers. CSF flows throughout the ventricular system unidirectionally in a rostral to caudal manner.

Detailed explanation-3: -The epithelial cells of the choroid plexus secrete cerebrospinal fluid (CSF), by a process that involves the movement of Na(+), Cl(-) and HCO(3)(-) from the blood to the ventricles of the brain. This creates the osmotic gradient, which drives the secretion of H(2)O.

Detailed explanation-4: -Instead, the blood-CSF barrier at the choroid plexus is formed by the epithelial cells and the tight junctions that link them. The other part of the blood-CSF barrier is the arachnoid membrane, which envelops the brain. The cells of this membrane also are linked by tight junctions.