Question

Question #cb1eb

Answer 1

The main function of the circulatory system is to transport nutrients throughout the body via blood.

Explanation:

The circulatory system consists of two separate systems, pulmonary circulation and systemic circulation.

The pulmonary circulation carries blood between the heart and the lungs. Deoxygenated blood leaves the right ventricle through pulmonary arteries, which transport it to the lungs. In the lungs, the blood gives up carbon dioxide and picks up oxygen. The oxygenated blood then returns to the left atrium of the heart through pulmonary veins. (CK-12, 2016)

Systematic circulation carries blood between the heart and the body. Oxygen-rich blood from the lungs leaves the pulmonary circulation to enter the left atrium through pulmonary veins. The blood from the left atrium then moves to the left ventricle where it is pumped through the aorta `->` arteries `->` aeteroriles `->` capillaries. The deoxygenated blood continues through the cappillaries before returning to the heart to be oxygenated. (Boundless, 2015)

The pathway is as follows

Capillaries `->` Venules `->` Veins