Discussion
Fill in the blanks with the correct answer :
__A__ pushes the blood into pulmonary artery. __B__ take deoxygenated blood from the heart to the lungs. __C__ return oxygenated blood from the lungs to the heart. From the left atrium, blood flows to the __D__. __E__ receives blood from different parts of the body.
Answer: C
The blanks are: right ventricle, pulmonary arteries, pulmonary veins, left ventricle and right auricle.
The right ventricle pumps blood into the pulmonary artery (A). The pulmonary arteries carry deoxygenated blood to the lungs (B), and the pulmonary veins bring oxygenated blood back to the heart (C). Blood passes from the left atrium into the left ventricle (D), which pumps it to the body. The right auricle (atrium) receives deoxygenated blood from all parts of the body (E).
The left ventricle pumps into the aorta, not the pulmonary artery, and the pulmonary veins and arteries are the other way round in the remaining option, so only the order right ventricle, pulmonary arteries, pulmonary veins, left ventricle, right auricle fits.
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