The circulatory system consists of one heart, five liters of blood, and approximately 96,000 kilometers of blood vessels, responsible for transporting nutrients and waste throughout the body.

Your heart's will to beat ... 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.

Your heart is an exquisitely ... tongue to see is shown. Human circulation. video Human circulation This short film takes us on a journey around the circulatory system using the example of a ...