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The circulation in which oxygenated blood travels from the left ventricle to the body organs and deoxygenated blood returns to the right atrium is called what?
APulmonary circulation
BCoronary circulation
CSingle circulation
DSystemic circulation
Answer & Solution
Correct answer: D. Systemic circulation
1. The path described starts at the left ventricle and serves the whole body.
2. Pulmonary circulation involves the lungs and the right ventricle, so option A is wrong.
3. Coronary circulation supplies only the heart muscle, ruling out option B.
4. Single circulation passes blood through the heart once, seen in fishes, ruling out option C.
5. Whole-body circulation from the left ventricle is systemic circulation, option D.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 14 Transportation in Plants and Circulation in Animals "Valves", p.215_
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