Which of the following chambers of the heart has the thickest muscular wall?
A
Left atrium
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B
Right atrium
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C
Right ventricle
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D
Left ventricle
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Solution
The correct option is D Left ventricle
The human heart is made up of four chambers. There are two atria and two ventricles. The heart chamber that has the thickest muscle wall is the left ventricle. The left ventricle is responsible for pumping the blood around the heart and so it needs to have a strong muscle wall.