The structure of the heart
Lesson 6 / 12
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I can describe the pathway of blood through the double circulatory system and explain its importance in maintaining efficient blood flow.
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Deoxygenated blood travels from the body into the heart's right side then through the pulmonary artery to the lungs.
The pulmonary vein carries oxygenated blood from the lungs to the left side of the heart then out the aorta to the body.
Valves in the heart prevent the backflow of blood.
The heart is a double circulatory pump. The pulmonary circuit carries blood to the lungs then back to the heart.
The systemic circuit carries oxygenated blood out of the heart to the body tissues and returns with deoxygenated blood.
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