George Washington died after his physician treated his sore throat with bloodletting, but don't let that stop you from ...

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 ...

Veins between two capillary networks are portal systems. Closed circulatory system, but fluid constituents of blood leak out of capillaries and return to the heart by the second component of the ...

When the significance of the human circulatory system was finally established, it revolutionized the life sciences and ushered in modern medicine. The Greeks observed the ebb and flow of tides in the ...

Human circulation. video Human circulation This short film takes us on a journey around the circulatory system using the example of a baby's first breath. Human circulatory and digestive system.