is the chamber with the thickest walls since it pumps blood to all body parts.
A
Right atrium
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B
Right ventricle
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C
Left atrium
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D
Left ventricle
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Solution
The correct option is D Left ventricle
The left ventricle has the thickest walls among the four chambers. This is because the left ventricle needs to pump blood to all parts of the body through the aorta.