Conclussions: The basis of the vascular plexuses of the cerebral ventricles is formed by a collection of blood vessels - from muscular arteries to capillaries, which come into contact with the ependymal epithelium in the villi of the plexus. The microcirculatory bed is adapted to its connective tissue environment and is closely functionally related to the epithelium of the vascular organ. Capillaries with polar arrangement of fenestrated endothelial cells on the side of the vascular plexus epithelium predominate, indicating their active transport function and participation in the function of the blood-cerebrospinal fluid barrier as part of the blood-brain barrier. Microvessels undergo changes during ontogenesis that correlate with changes in the plexus itself, which occur simultaneously with the development of the brain and reflect the functional loads of the vascular plexus.
Fedoniuk et al. (Fri,) studied this question.