Question

Choose the schematic diagram, which properly represents pulmonary circulation in humans.

• A. Right ventricle $\underset{blood}{\overset{Deoxygenated}{\to }}Lungs\underset{blood}{\overset{Oxygenated}{\to }}$ Left auricle
• B. Right ventricle$\underset{blood}{\overset{oxygenated}{\to }}Lungs\underset{blood}{\overset{deoxygenated}{\to }}$ Left auricle
• C. Left auricle $\underset{blood}{\overset{Oxygenated}{\to }}Lungs\underset{blood}{\overset{Deoxygenated}{\to }}$ Right ventricle
• D. Left auricle $\underset{blood}{\overset{deoxygenated}{\to }}Lungs\underset{blood}{\overset{oxygenated}{\to }}$ Right ventricle

Answer 1

The correct option is A Right ventricle $\underset{blood}{\overset{Deoxygenated}{\to }}Lungs\underset{blood}{\overset{Oxygenated}{\to }}$ Left auricle

• Humans have four-chambered hearts with complete separation between oxygenated and deoxygenated blood.
• The auricles receive the blood and ventricles pump the blood.
• Right auricles receive deoxygenated blood from the body and pass it to the right ventricle.
• At the same time, the left auricle receives oxygenated blood from the lungs.
• The right ventricle pumps deoxygenated blood to the lungs for oxygenation and at the same time, the left ventricle pumps oxygenated blood to the body.
• Pulmonary circulation is the circulation of deoxygenated blood from the right ventricle to the lungs and from the lungs, the oxygenated blood comes to the left auricle.