Doing these things keeps your blood flowing well through your circulatory system, which is key to staying ... In this activity you will model what happens to blood flow when coronary heart disease ...

In the 2nd century, the Greek physician and philosopher Galen of Pergamon came up with a believable model for the circulatory system. He rightly recognized that the system involves venous (dark ...

Your circulatory system works all day, every day, to pump oxygen throughout your body. There are cardiovascular conditions that can impact this system. Your circulatory system, also known as your ...

Share on Pinterest The ‘sunshine vitamin’ has ... acts more like an organ that lines the whole of the circulatory system from the “heart to the smallest capillaries,” and whose cells ...

Your circulatory system contains three blood vessel types: arteries, veins, and capillaries. Arteries carry blood from the heart, unlike veins, which carry blood to the heart. According to the ...