There was no need for circulation. Basic Books ... called the “wine-dark sea”) and inferred that a similar to-and-fro motion of blood operated within the human body. Modern medicine would be ...

This short film is from the BBC series, Biological processes of the human body. You could recreate the blood cycle / circulation by using red balloons and blue balloons to represent oxygenated and ...

This short film offers a look at respiration and a tour around the circulatory system and digestive system in the human body, through blood vessels and into mitochondria. There is a detailed ...

Day and night, the muscles of your heart contract and relax to pump blood throughout your body. When blood returns to the heart, it follows a complicated pathway. If you were in the bloodstream ...

Scientists have found that the aorta acts like a 'second heart,' using stretch-and-recoil power to pump blood—revealing a ...

Vaping has “immediate” negative impacts on the body’s circulation, warn the authors ... that vaping had a “significant” ...

The cardiovascular system, the human body’s circulatory system, is a vital network of organs and tissues such as the blood, heart, and blood vessels responsible for transporting blood. The circulatory ...