What represents the full cycle of blood circulation through the heart?

The full cycle of blood circulation through the heart is best represented by systemic circulation. This process involves the movement of oxygenated blood from the heart to the rest of the body and the return of deoxygenated blood back to the heart.

During systemic circulation, the left ventricle pumps oxygen-rich blood into the aorta, where it is distributed to all body tissues. After delivering oxygen and nutrients, the blood collects carbon dioxide and other waste products and returns to the heart through the venous system, entering the right atrium. This cycle highlights the heart's role as a pump, facilitating the transport of blood that is crucial for cellular function and overall homeostasis.

While pulmonary circulation is also an essential part of the overall circulatory process, it specifically refers to the movement of blood between the heart and the lungs, where carbon dioxide is exchanged for oxygen. Coronary circulation refers to the flow of blood to and from the tissues of the heart itself. The complete cardiac cycle describes the sequence of events during a single heartbeat but does not encompass the entire blood circulation process. Thus, systemic circulation accurately represents the full journey of blood through the heart and the body.