benefits of double circulation
Answers
Answer:
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!
Explanation:
Answer:
Double circulation or the double circulatory system is also known as double-loop circulatory system; this system refers to two individual and separate circulatory pathways for blood flow.
In double circulation blood circulated first in pulmonary circuit and then the system circuit. In a first order pulmonary circuit blood is pumped to the lungs thus receiving oxygen and releasing carbon dioxide simultaneously. Oxygenated blood enters the second circuit also known as the systemic circuit which goes to the brain and body parts. The systemic output, the second order returns the deoxygenated blood from the peripheral organs to the heart and when it returns to the lungs it becomes oxygenated again. Double circulatory system is also a closed circulatory system as blood travels through distinct blood vessels in the body.
This system of blood circulation is seeds in most of the vertebrates which includes the amphibians, birds and mammals including man. Animals that live outside water require a double circulatory system to allow direct oxygenation from a developed pulmonary circuit.
Mammals have a double circulation that is one circuit link the heart and lungs and the other circuit links the heart with the rest of the body.
In double circulation the right part of the heart is concerned with venous blood and the left part of the heart is concerned with oxygenated blood. In one complete circulation, blood passes twice through the heart and once through its right side and then through its left side. The chamber of the heart, the ventricles and the auricles are separated by valves which allows no mixture of venous and oxygenated blood.
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