Ages 12–13🔬 ScienceBeing planted

Heart Structure & Double Circulation

Describe the structure of the heart (four chambers, valves, coronary arteries) and explain how it pumps deoxygenated blood to the lungs and oxygenated blood to the body in a double circulatory system

A first look

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Question 1 of 3

After blood leaves the left ventricle of the heart, which vessel does it travel through first?

Question 2 of 3

Blood is pumped out of the heart to the rest of the body through the aorta. Through which chamber does the blood travel immediately before entering the aorta?

Question 3 of 3

Which heart valve prevents blood from flowing backward from the left ventricle into the left atrium?

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