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प्रश्न
What is meant by the term ‘Double circulation’?
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उत्तर
Double circulation is the type of blood circulation in which blood passes through the heart twice during one complete circulation. It consists of pulmonary circulation (heart → lungs → heart) and systemic circulation (heart → body → heart). Therefore, blood circulation in humans is called double circulation.
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संबंधित प्रश्न
What is the significance of double circulation?
Which blood vessel does not carry any carbon dioxide?
In which organ of our body does blood get oxygenated?
Blood in the human body circulates twice for making one complete round through the body. Explain.
Blood in the human body circulates twice for making one complete round through the body. Explain.
The diagram represents the ‘closed system’ or ‘double circulation’ of blood in mammals.
Justify the above statement.
State two structural and two functional differences between the arteries and veins.
State the changes in the composition of blood as it passes through the following organs:
(a) Lungs (b) Gut (c) Liver (d) Kidneys.
Explain the Term
Double Circulation
Why is the circulation in man referred to as double circulation?
Choose the event that does not occur in photosynthesis
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.
Describe the events in cardiac cycle. Explain “double circulation”.
In which, blood circulation starts and ends in capillaries?
Why is the separation of the right side and the left side of the heart useful? How does it help birds and mammals?
From where to where do the following blood vessel carry blood?
Posterior vena cava
From where to where do the following blood vessel carry blood?
Hepatic vein
From where to where do the following blood vessel carry blood?
Hepatic portal vein
Write important role/roles of the following:
Hepatic portal vein
