what is double circulation?

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Double circulation The type of circulatory system that occurs in mammals, in which the blood passes through the heart twice before completing a full circuit of the body (see illustration). Blood is pumped from the heart to the lungs and returns to the heart before being distributed to the other organs and tissues of the body. The heart is divided into two separate compartments to prevent oxygenated blood returning from the lungs from mixing with deoxygenated blood from the other parts of the body. See also pulmonary circulation; systemic circulation. Compare single circulation.

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The human circulatory system is a double circulatory system. It has two separate circuits and blood passes through the heart twice: the pulmonary circuit is between the heart and lungs. the systemic circuit is between the heart and the other organs.

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A circulatory system in which the blood travels twice through the heart in one complete cycle of the body is called double circulation

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when blood passes twice through the heart to supply once to the body...

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Double circulation is a topic related to heart in which blood passes through the heart twicely 1stly through the right auricle to the lungs and then lungs to left auricle to body systems thus we can say that heart's blood passes through twice .the process of is called double circulation I hope it will help you:)

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A circulatory system in which the blood makes two distinct circuit -compare pulmonary circulation, systemic circulation

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The majority of mammals (including humans) utilize adouble circulatory system. This means we have two loops in our body in which blood circulates. One is oxygenated, meaning oxygen rich, and the other is deoxygenated, which means it has little to no oxygen, but a lot of carbon dioxide.

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Movement of oxygenated &deoxygenated blood without intermixing via lungs heart&body is called double circulation.

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Double Circulation

Double circulation refers to the blood circulation system found in mammals, including humans. It consists of two distinct circuits, namely the pulmonary circulation and the systemic circulation. This system ensures efficient oxygenation of blood and the distribution of nutrients to the body.

Pulmonary Circulation

Pulmonary circulation begins in the right atrium of the heart. Deoxygenated blood from the body is returned to the right atrium through the superior and inferior vena cava. From there, it flows into the right ventricle, which pumps the blood into the pulmonary artery. The pulmonary artery then carries the deoxygenated blood to the lungs, where it undergoes oxygenation through gas exchange in the capillaries surrounding the alveoli. Oxygen-rich blood returns to the heart via the pulmonary veins, entering the left atrium.

Systemic Circulation

Systemic circulation begins in the left atrium, where oxygenated blood from the lungs is received. From the left atrium, the blood flows into the left ventricle, which is responsible for pumping the oxygenated blood into the aorta, the largest artery in the body. The aorta branches out into numerous arteries that transport the oxygenated blood to all parts of the body, including organs, tissues, and cells. In the capillaries, oxygen and nutrients are released to nourish the body's cells, while waste products like carbon dioxide and metabolic byproducts are collected.

Advantages of Double Circulation

1. Efficient Oxygenation: Double circulation ensures that blood is efficiently oxygenated. Blood receives fresh oxygen in the lungs and then transports it to various body tissues, maximizing the body's oxygen supply.

2. Nutrient Distribution: The double circulation system facilitates the distribution of nutrients to different parts of the body. Oxygen and nutrients are delivered to cells through the systemic circulation, ensuring proper functioning and growth.

3. Separation of Oxygenated and Deoxygenated Blood: The separation of oxygenated and deoxygenated blood prevents the mixing of these two types of blood, ensuring that oxygen-rich blood is delivered to organs and tissues.

4. Pressure Regulation: Double circulation helps regulate blood pressure by maintaining separate circuits for the lungs and the rest of the body. This allows for efficient blood flow and pressure control in both circuits.

5. Waste Removal: The double circulation system enables the removal of waste products, such as carbon dioxide, from the body. Deoxygenated blood, carrying waste products, is transported to the lungs for elimination during pulmonary circulation.

In conclusion, double circulation is a vital feature of the circulatory system in mammals. It ensures efficient oxygenation, nutrient distribution, waste removal, and pressure regulation throughout the body, allowing mammals to maintain optimal physiological functions.

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