Drip... Drip. When your pipes are leaking, it's never a good thing. Who you gon’ call, YOUR DOCTOR! The next lesson in our ‘pipe’-line focuses on the pipes of the cardiovascular system - the Arteries and Veins. Learn about the arterial and venous systems that manage blood flows with differing pressures, high and low. However, both systems have mechanisms that control blood flow under unique conditions to supply our tissues with nutrients, remove waste, and keep us alive. In the event of a busted pipe, know that a plumber can’t help you. Call a doctor, because the pipes in your body are much more complex and interactive with the materials inside than the ones in your home.