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.
Bats are mammals in the order Chiroptera. They are the only mammals that can fly. Other mammals like flying squirrels, or flying possum, can glide but not fly. Bats are nocturnal â they are active during the night, dusk, or dawn. Most use echolocation to catch prey and to find their way about. As nighttime animals, bats avoid direct competition with birds, few of which are nocturnal. Bats are a successful group. They are the second largest order of mammals: there are more than 1,100 ...