Biology - Chemical Coordination and Integration Question with Solution | TestHub

The hypophyseal portal system is a system of blood vessels in the brain that connects the hypothalamus with the anterior pituitary (adenohypophysis).

Its main function is the transport and exchange of hormones to allow a fast communication between both glands. The portal vein starts from the primary capillary plexus in the hypothalamus and ends in the secondary capillary plexus in the adenohypophysis.

The neurohypophysis (posterior pituitary) is connected to the hypothalamus directly via neural pathways, not by a portal system.

Answer: It starts with hypothalamus and ends into adenohypophysis.