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प्रश्न
Why is the circulation in man referred to as double circulation?
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उत्तर
In humans, blood passes twice through the heart to supply once to the body.
Double circulation involves:
(i) Systemic circulation,
(ii) Pulmonary circulation.
(i) Systemic circulation: In the systemic circulation, from the left ventricle blood is pumped into the aorta and to various parts of the body.
(ii) Pulmonary circulation: In pulmonary circulation, from the right ventricle deoxygenated blood is pumped into the pulmonary artery which carries blood to the lungs for oxygenation.
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संबंधित प्रश्न
What is meant by the term 'single circulation'?
What is the difference between pulmonary circulation and systemic circulation?
Why is the small intestine in herbivores longer than in carnivores?
Which of the following carries nutrients from the digestive tract to the liver?
Name the vascular connection that exists between the digestive tract and liver.
Explain the process of transport of oxygenated and deoxygenated blood in a human body.
Why is the separation of the right side and the left side of the heart useful? How does it help birds and mammals?
Write a note on closed circulation.
From where to where do the following blood vessel carry blood?
Hepatic portal vein
Write important role/roles of the following:
Hepatic portal vein
