MCQ IN MEDICINE

Detailed explanation-1: -The left ventricle is the main powerhouse of the heart, having to pump blood all the way around the systemic circulation. Because of this it has the largest, most muscular walls of any of the chambers. In fact, it is three times as thick as the right ventricle.

Detailed explanation-2: -The left ventricle is the strongest because it has to pump blood out to the entire body. When your heart functions normally, all four chambers work together in a continuous and coordinated effort to keep oxygen-rich blood circulating throughout your body.

Detailed explanation-3: -The left ventricle also has a thicker muscular wall than the right ventricle, as seen in the adjacent image. This is due to the higher forces needed to pump blood through the systemic circuit (around the body) compared to the pulmonary circuit.