Heart Structure & Double Circulation

Question 1

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

Accepted Answer

It travels through the aorta, which carries oxygen‑rich blood to the body.

Answer

It travels through the pulmonary vein, which returns blood to the left atrium.

Answer

It travels through the pulmonary artery, which carries blood to the lungs.

Answer

It travels through the inferior vena cava, which brings blood to the right atrium.

Question 2

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?

Accepted Answer

Left ventricle

Answer

Left atrium

Answer

Right atrium

Answer

Right ventricle

Question 3

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

Accepted Answer

Mitral (bicuspid) valve

Answer

Pulmonary valve

Answer

Tricuspid valve

Answer

Aortic valve

Try three questions

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

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?

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

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