1 Total loss of circulation can lead to gangrene and loss of a limb. 2  Blockage in the renal arteries (arteries supplying the kidneys) can cause renal artery disease (stenosis). 3  The symptoms include uncontrolled high blood pressure, heart failure, and abnormal kidney function.rteries carry blood away from the heart while veins return it. Vascular disease includes any condition that affects your circulatory system. This ranges from diseases of your arteries, veins, and lymph vessels to blood disorders that affect circulation.
World's Weirdest: Vampire Bats. When it comes to feeding, this thumb-sized bat definitely sides with Dracula. Vampire bats are the only mammals on an all-blood diet â and an unsuspecting cow is the perfect prey.
The Vampire batâs Circle of Life. Even though the Vampire bat does not hibernate, it has an unusually long gestation period. Female Vampire bats give birth to one pup after a gestation period of 90-120 days. Young Vampire bats develop slowly. As a pup, the Vampire bat does not feed on blood but milk from its mother.