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2. Explain the pathway of blood through the heart.

Answer - The blood begins its journey through arteries, capillaries, and veins.

I need a bit more details (about 2 more sentences), please help

http://www.pbs.org/wgbh/nova/body/map-human-heart.html

I'll post my answer soon.

Sure! In the human body, the pathway of blood through the heart starts with deoxygenated blood entering the right atrium from the body through the superior and inferior vena cava. From the right atrium, it then moves into the right ventricle and is pumped into the pulmonary artery, which takes the blood to the lungs for oxygenation. Once oxygenated, the blood returns to the left atrium through the pulmonary veins and then flows into the left ventricle. The left ventricle then pumps the oxygenated blood out of the heart and into the systemic circulation through the aorta, supplying oxygen to various body organs and tissues.