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प्रश्न
How do you account for the following difference?
The walls of the right ventricle are thicker than those of the right auricle.
Give reasons/explain:
The walls of right ventricle are thicker than those of the right auricle.
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उत्तर
The right ventricle pumps blood to the lungs for oxygenation, whereas the right auricle receives the blood from the vena cavae and passes it to the right ventricle. Therefore, the walls of the right ventricle are thicker than those of the right auricle.
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संबंधित प्रश्न
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The phase of the cardiac cycle in which the auricles contract.
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Column A Column B
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Given below is the simplified pathway of the circulatory system:
(i) Name the blood vessels marked 1 to 8.
(ii) Name the chamber of the heart which:
(a) Receives blood from ‘1’.
(b) Pumps blood into blood vessel ‘8’.
(iii) Mention two structural differences between blood vessels ‘7’ and ‘2’.
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(i) Label the parts 1 to 4 indicated in the diagram.
(ii) Give one difference between parts 1 and 2 based on:
(a) their structure
(b) the nature of blood flowing through them.
(iii) What is the specific name of the type of blood circulation that takes place between the heart and the lungs?
(iv) Name the valve found at the beginning of the part labeled 3.
Identify the INCORRECT match
Circulation is carried out by ______ in higher animals.
