SCIENCE
CIRCULATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Pulmonary semilunar valve
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Pulmonary veins
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Aortic semilunar valve
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Pulmonary trunk
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Detailed explanation-1: -Right ventricle: Your heart’s bottom right chamber (right ventricle) pumps oxygen-poor blood through your pulmonary valve into your main pulmonary artery.
Detailed explanation-2: -Pulmonary valve: Allows blood to pass into the pulmonary arteries; prevents blood from flowing back into the right ventricle.
Detailed explanation-3: -The semilunar valve prevents blood from re-entering the heart and so deoxygenated blood is pumped through the pulmonary artery where then the blood is oxygenated at the lungs.
Detailed explanation-4: -The semilunar valves are pocketlike structures attached at the point at which the pulmonary artery and the aorta leave the ventricles. The pulmonary valve guards the orifice between the right ventricle and the pulmonary artery.