Final answer:
The statement is true; the left ventricle walls are thicker than the right due to the need to pump blood through the systemic circuit, overcoming greater resistance than the right ventricle does with the pulmonary circuit.
Step-by-step explanation:
The statement that the left ventricle walls are typically thicker than the right ventricular wall is true. The main reason for this is that the left ventricle works harder to pump blood through the systemic circuit, which requires overcoming greater resistance compared to the pulmonary circuit served by the right ventricle. The myocardium, the middle layer of the heart wall which is made up of cardiac muscle, is substantially thicker in the left ventricle to provide the necessary force for systemic circulation.
In the left ventricle, muscle mass needs to be greater because it pumps blood into the long systemic circuit. While both the right and left ventricles pump the same volume of blood during each contraction, the left ventricle must generate a higher pressure to move blood through the larger and more resistance-filled systemic circuit.
Blood vessels of the coronary system, including the coronary arteries and veins, supply the heart musculature with oxygen, ensuring these muscles can sustain the effort needed to maintain circulation. The muscles in the left ventricle are well-developed to undertake this important task, distinguishing it from the right ventricle, which faces lesser resistance on the pulmonary pathway.