PLANT PHYSIOLOGY
TRANSPORT IN PLANT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which shows the correct pathway of oxygenated blood entering and leaving the heart?
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Pulmonary vein > left atrium > left ventricle > aorta
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Pulmonary vein > left atrium > right ventricle > aorta
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Vena cava > right atrium > right ventricle > pulmonary artery
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Vena cava > right atrium > left ventricle > pulmonary artery
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Explanation:
Detailed explanation-1: -Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where it becomes oxygenated. The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium blood flows into the left ventricle.
Detailed explanation-2: -Oxygen-rich blood flows from the lungs back into the left atrium (LA), or the left upper chamber of the heart, through four pulmonary veins. Oxygen-rich blood then flows through the mitral valve (MV) into the left ventricle (LV), or the left lower chamber.
Detailed explanation-3: -So, the correct answer is ‘Right atrium→ right ventricle → left atrium → left ventricle’
There is 1 question to complete.