water and oxygen to the entire body. Your circulatory system is made up of three parts: the heart, blood vessels and the blood itself. Your heart keeps all the blood in your circulatory system ...

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 ...

When it comes to understanding the human blood circulation system, one fascinating aspect is the lung was ist tonerin capillaries. These veins play an ...