Which one has the thickest walls than the others?
Correct answer: D. Left ventricle
- A. Right atria
- B. Left atria
- C. Right ventricle
- D. Left ventricle
Explanation
Yes, the left ventricle has the thickest walls of the four chambers of the heart. This is because the left ventricle pumps oxygenated blood to the entire body, while the right ventricle pumps deoxygenated blood to the lungs. The left ventricle has to generate more force to pump blood against the higher resistance of the systemic circulation, so it needs thicker walls.The walls of the left ventricle are made up of cardiac muscle tissue, which is a type of muscle that is able to contract and relax very quickly. This allows the left ventricle to pump blood out of the heart at a high rate.
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