3 The blood circulatory system can be divided into two parts Name both?

The blood circulatory system is divided into two main parts: the systemic circulation and the pulmonary circulation. Systemic circulation is responsible for delivering oxygenated blood from the heart to the rest of the body and returning deoxygenated blood back to the heart. In contrast, pulmonary circulation involves the movement of deoxygenated blood from the heart to the lungs for oxygenation and then back to the heart. Together, these two systems ensure efficient blood flow and oxygen delivery throughout the body.