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Question

Which has the thickest wall?

A
Right auricle
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B
Right ventricle
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C
Left auricle
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D
Left ventricle
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Solution

The correct option is D Left ventricle
In the humans, the heart is a 4 chambered muscular organ. The upper two relatively small chambers are called as auricle and lower two chambers are called as ventricles. Among the four chambers of the heart, the left ventricle has the thickest wall because it has to pump the oxygenated blood throughout the body with high pressure.
So, the correct answer is 'Left ventricle'.

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