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.
Vampire bats feed only on blood, a fact that sets the human imagination racing. The three species are medium-seized, with adult wingspans of 320 to 350 mm and weights of about 40 grams. While they are larger than most of the bats of the temperate zones of the world, vampire bats are much smaller than Gigantic Flying Foxes, which weigh in at 1,500 g.