Humans have one of the most complex circulatory systems of all beings. It is interesting because the heart pumps blood through all the veins and arteries in your circulatory system to your entire body. If you didn't have blood circulating in your body you would die.
William Harvey
Charles E. VanIngen, I believe
All the veins in your body can stretch twice around the earth.
William Harvey, an English physician, is credited with the discovery of the blood circulatory system in the early 17th century. Harvey's work demonstrated that blood circulated throughout the body in a closed system, propelled by the heart. His findings revolutionized the understanding of human physiology.
closed circulatory system (double circulatory system)
They're both the circulatory system.
Amphibians have closed circulatory system Closed
The circulatory system
Penguins have a closed circulatory system, which means that their blood is contained and moves through vessels like arteries and veins. This system helps efficiently deliver oxygen to their tissues and remove wastes.
open circulatory systemclosed circulatory system.
The cadiovascular system, sometimes called the circulatory system when it includes the lymphatic system.
Well,circulatory system is made up of BLOOD and heart.