It is one of only a few portal systems of circulation in the body; that is, it involves two capillary beds connected by venules rather than arterioles.
That is, it involves two capillary beds connected by venules rather than arterioles. It is one of only a few portal systems of circulation in the body.
It is one of only a few portal systems of circulation in the body. That is, it involves two capillary beds connected by venules rather than arterioles.
It is one of only a few portal systems of circulation in the body. That is, it involves two capillary beds connected by venules rather than arterioles.