Question

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Which best describes the flow of oxygenated blood through the heart?
Question 1 options:

Left pulmonary veins, right atrium, right AV valve, right ventricle, aortic semilunar valve, aorta


Pulmonary veins, left atrium, left AV valve, left ventricle, aortic semilunar valve, aorta


Superior vena cava, left atrium, left AV valve, left ventricle, pulmonary semilunar valve, left pulmonary artery


Superior vena cava, right atrium, right AV valve, right ventricle, pulmonary semilunar valve, left pulmonary artery

Answer 1

Answer:

Explanation:

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.