'Why is double circulation necessary in human beings ?'?

Question

Answer

Ans. During a single cycle blood goes twice in the heart which is known as double circulation. It is necessary in human being to separate oxygenated and de-oxygenated blood because this makes their circulatory system is more efficient and helps in maintaining constant body temperature.

Answer

Agr simple tarike se explain kru to...

= blood ka ek hi time pe 2 baar circulates hona from heart to body and body to heart is known as Double Cirulation...

Ye topic important h...Boards mein 3 marks..ka question bnta h iska....

Answer

Double Circulation in Human Beings

Double circulation refers to the process of blood flowing through two separate circuits in the body. In human beings, double circulation is necessary for efficient oxygenation of blood and removal of waste products from the body. The two circuits are the pulmonary circulation and the systemic circulation.

Pulmonary Circulation

The pulmonary circulation refers to the circulation of blood between the heart and the lungs. This circuit is responsible for oxygenating the blood and removing carbon dioxide, a waste product of cellular respiration. The process of pulmonary circulation involves the following steps:

1. Deoxygenated blood from the body enters the right atrium of the heart through the superior and inferior vena cava.

2. The right atrium contracts, and the blood flows into the right ventricle.

3. The right ventricle contracts, and the blood is pumped into the pulmonary artery, which carries the blood to the lungs.

4. In the lungs, the blood is oxygenated and carbon dioxide is removed.

5. The oxygenated blood returns to the heart through the pulmonary veins, which enter the left atrium.

Systemic Circulation

The systemic circulation refers to the circulation of oxygenated blood between the heart and the rest of the body. This circuit is responsible for delivering oxygen and nutrients to the body's tissues and removing waste products. The process of systemic circulation involves the following steps:

1. Oxygenated blood from the lungs enters the left atrium of the heart through the pulmonary veins.

2. The left atrium contracts, and the blood flows into the left ventricle.

3. The left ventricle contracts, and the blood is pumped into the aorta, which carries the blood to the rest of the body.

4. In the body's tissues, the oxygen is delivered to the cells, and waste products are removed.

5. The deoxygenated blood returns to the heart through the superior and inferior vena cava, and the process starts again.

Conclusion

Double circulation is necessary in human beings because it ensures that oxygenated blood is efficiently delivered to the body's tissues and waste products are removed. The pulmonary circulation oxygenates the blood, while the systemic circulation delivers the oxygenated blood to the rest of the body. The two circuits work together to maintain the body's homeostasis and keep us alive.

Answer

During a single cycle , blood goes twice in heart which is known as or meant as double circulation . It is important becoz it makes their circulatory system more efficient and helps in maintaining the temperature of the body constant.

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