Template:WikiDoc Cardiology News Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
The hypophyseal portal system (or hypothalamo-hypophyseal portal system) is the system of blood vessels that links the hypothalamus and the anterior pituitary. It allows endocrine communication between the two structures. The anterior pituitary receives releasing and inhibitory hormones in the blood. Using these the anterior pituitary is able to fulfill its function of regulating the other endocrine glands.
It is one of only a few portal systems of circulation in the body; that is, it involves two capillary beds connected by venules.
mechanism for hormone transport via hypothalamoportal vessels: