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Question

Thicker muscular walls are present in the ventricles of the heart due to which of the following reasons?

This question was previously asked in
RRB ALP 2025 CBT 2 Wiremen Question Paper (28-Jul-2026) (Shift 2)
The correct answer is
To pump blood with high pressure

Reason for Thick Ventricle Walls

The primary role of the heart's ventricles is to pump blood out of the heart to the rest of the body or lungs.

  • The left ventricle wall is the thickest because it must generate the highest pressure to pump oxygenated blood throughout the entire body (systemic circulation).
  • The right ventricle wall is also thick, but less so than the left, as it pumps deoxygenated blood to the nearby lungs (pulmonary circulation), requiring lower pressure.
  • This significant muscle mass is necessary to contract forcefully and propel blood against resistance, ensuring efficient circulation.

Therefore, the thicker muscular walls are essential to pump blood with high pressure.

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