Blood Flow from the Heart, to the Lungs, and Back

Question

Blood flow from the heart, to the lungs, and back to the heart is known as the:
A) pericardial circulation.
B) pulmonary circulation.
C) coronary circulation.
D) systemic circulation.

Accepted Answer

Pulmonary circulation specifically refers to the flow of blood from the heart to the lungs for oxygenation, and then back to the heart. Pericardial circulation refers to the blood flow within the pericardium, which is not a major circulatory pathway. Coronary circulation refers to the flow of blood to the heart muscle itself, and systemic circulation refers to the flow of oxygenated blood to the rest of the body.