Final answer:
The total blood volume in an adult is divided into systemic, pulmonary, and heart blood. The systemic circuit distributes oxygenated blood to the body, the pulmonary circuit carries deoxygenated blood to the lungs and back to the heart, and the heart contains blood within its chambers.
Step-by-step explanation:
The total blood volume in an adult varies, with adult males typically averaging about 5-6 liters and females averaging 4-5 liters. Blood can be divided into different components, including systemic blood, pulmonary blood, and blood in the heart.
The systemic circuit is responsible for distributing oxygenated blood from the heart to the rest of the body. This includes delivering oxygen and nutrients to tissues and organs and removing waste products.
The pulmonary circuit is responsible for carrying deoxygenated blood from the heart to the lungs and returning oxygenated blood back to the heart. This allows for the exchange of oxygen and carbon dioxide.
The blood present in the heart refers to the blood that is within the chambers of the heart itself. It is involved in the pumping action of the heart to deliver blood to the systemic and pulmonary circuits.