Final answer:
The inferior/diaphragmatic surface of the heart comprises the left and right ventricles. Blood travels through the bicuspid valve to the left ventricle, not the atrium, and the right atrium is the chamber that initially receives blood from the systemic circuit.
Step-by-step explanation:
The inferior / diaphragmatic surface of the heart is largely made up by the left ventricle and, to a lesser extent, the right ventricle. Therefore, the correct answer to what makes up this surface is B. Right and Left Ventricles.
As for the false statement about the heart, option b is incorrect because the blood travels through the bicuspid valve, also known as the mitral valve, to the left ventricle, not the left atrium. Lastly, regarding the chambers of the heart, the chamber that initially receives blood from the systemic circuit is the right atrium, which is correctly identified in option C. right atrium.