The findings were telling: After inhaling each type of vape or smoke, blood flow in the femoral artery slowed significantly.

Often, major veins are found alongside similarly named arteries, like a highway with cars moving in opposite directions: in the upper arm, for example, the axillary vein lies next to the axillary ...

The heart is a muscle about the size of your fist. Your heart pumps blood and oxygen to all of the organs and tissues of the body through a network of “pipes” called arteries and veins. The heart ...

All blood vessels are specifically structured to perform their function. For example, a capillary is microscopically thin to allow gases to exchange, the arteries are tough and flexible to cope ...