EVERYDAY SCIENCE

Detailed explanation-1: -The systemic circulation provides the functional blood supply to all body tissue. It carries oxygen and nutrients to the cells and picks up carbon dioxide and waste products. Systemic circulation carries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body.

Detailed explanation-2: -After the blood gets oxygen in the lungs, it is called oxygen-rich blood. Oxygen-rich blood flows from the lungs back into the left atrium (LA), or the left upper chamber of the heart, through four pulmonary veins.

Detailed explanation-3: -The lung also has a systemic vascular supply, the bronchial circulation, which provides oxygenated blood from the systemic circulation to the walls of the conducting airways, pulmonary arteries and veins.

Detailed explanation-4: -The arteries (red) carry oxygen and nutrients away from your heart, to your body’s tissues. The veins (blue) take oxygen-poor blood back to the heart. Arteries begin with the aorta, the large artery leaving the heart. They carry oxygen-rich blood away from the heart to all of the body’s tissues.

Detailed explanation-5: -The pulmonary circuit: This circuit carries blood without oxygen from the heart to the lungs. The pulmonary veins return oxygenated blood to the heart. The systemic circuit: In this circuit, blood with oxygen, nutrients and hormones travels from the heart to the rest of the body.