Which statement is true for structure of human heart?
There is a bicuspid valve between right atrium and right ventricle
The walls of atria are thin while the wall of ventricles are thick
There is a tricuspid valve between left atrium and left ventricle
The upper two chambers of heart is called ventricles and lower two chambers is called atria
A
The walls of atria are thin while the wall of ventricles are thick
B
There is a tricuspid valve between left atrium and left ventricle
C
The upper two chambers of heart is called ventricles and lower two chambers is called atria
D
There is a bicuspid valve between right atrium and right ventricle
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Solution
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The walls of the atria are thin, while the walls of the ventricles are thick. The atria receive blood from the various parts of the body and the ventricles pump blood to various parts of the body, pumping requires more pressure and force. So, to withstand the pressure, the walls of the ventricles are thicker than the walls of the atria.
Thus, the correct answer is option A.
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