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प्रश्न
Why is the circulation in man referred to as double circulation?
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
Describe double circulation in human beings.
Blood in the human body circulates twice for making one complete round through the body. Explain.
What is the difference between pulmonary circulation and systemic circulation?
What does the term ‘double circulation’ mean?
In which of the following organisms double circulation occurs?
In which of the following groups of organisms, blood flows through the heart only once during one cycle of passage through the body?
Name the vascular connection that exists between the digestive tract and liver.
Explain the advantage of the complete partition of ventricle among birds and mammals and hence leading to double circulation.
What is the significance of hepatic portal system in the circulatory system?
In which, blood circulation starts and ends in capillaries?
