On each trip around the body blood passes through your heart twice explain why?
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It is called a double circulatory system because blood passes through the heart twice per circuit.
⇒ The right pump sends deoxygenated blood to the lungs where it becomes oxygenated and returns back to the heart.
⇒The left pump sends the newly oxygenated blood around the body.
⇒ That's why Blood have to pass twice through the Heart .
⇒ Double circulatory systems are important because they ensure that we are giving our tissues and muscles blood full of oxygen, instead of a mixture of oxygenated and deoxygenated blood.
⇒ While it may take a bit more energy than a single circulatory system, this system is much more efficient .
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