Final answer:
The correct answer is Systemic circulation. In the mammalian circulatory system, there are three circuits: the systemic circuit, the pulmonary circuit, and the coronary circuit. Systemic circulation refers to the flow of blood throughout the entire body, delivering oxygen and nutrients to the tissues and organs.
Step-by-step explanation:
The correct answer is (a) Systemic circulation.
In the mammalian circulatory system, there are three circuits: the systemic circuit, the pulmonary circuit, and the coronary circuit. Systemic circulation refers to the flow of blood throughout the entire body, delivering oxygen and nutrients to the tissues and organs.
For example, oxygen-rich blood leaves the left ventricle of the heart through the aorta and is distributed to the rest of the body via arteries. The deoxygenated blood then returns to the heart through veins, such as the superior vena cava and inferior vena cava, to be oxygenated again.