Plexus choroideus

What is the choroidal plexus? The plexus choroideus is a collection of intertwined blood vessels. Both veins (running towards the heart) and arteries (running away from the heart) are involved in the formation of the plexus. They are all located in cavities inside the brain (brain ventricles), which are filled with cerebrospinal fluid (liquor). The … Plexus choroideus