Question

Which of the following statement(s) is (are) true about a heart?

• A. The left atrium receives oxygenated blood from different parts of the body, while right atrium receives deoxygenated blood from lungs.
• B. The left ventricle pumps oxygenated blood to different body parts, while right ventricle pumps deoxygenated blood to lungs.
• C. The left atrium transfers oxygenated blood to the right ventricle, which sends it to different body parts.
• D. The right atrium receives oxygenated blood from different parts of the body, while left ventricle pumps oxygenated blood to different parts of the body

Answer 1

The correct option is B

The left ventricle pumps oxygenated blood to different body parts, while right ventricle pumps deoxygenated blood to lungs.

The correct option is B.

Explanation for the correct option:

Option B:

1. Birds and mammals have four-chambered hearts.
2. They exhibit double circulation, which prevents the mixing of oxygenated and deoxygenated blood.
3. The right atrium receives deoxygenated blood from the body by vena cava..
4. The left atrium receive oxygenated blood from lungs via pulmonary veins at the same time.
5. Deoxygenated blood is sent from the right atrium to the right ventricle, whereas oxygenated blood is sent from the left atrium to the left ventricle.
6. The left ventricle pumps oxygenated blood to the body through aorta for oxygen distribution.
7. The right ventricle pumps deoxygenated blood to the lungs through the pulmonary artery for oxygenation.

Explanation for the incorrect options:

Option A:

1. Atrium is the upper heart chamber of vertebrates and higher invertebrates.
2. There is a right atrium and a left atrium.
3. Ventricles are the lower heart chambers.
4. There is a right ventricle and a left ventricle.
5. Ventricles receive blood from the atrium and pumps them out into blood vessels for circulation.
6. The right atrium receives deoxygenated blood from the body and pumps it into the right ventricle.
7. The left atrium receives oxygenated blood from the lungs and pumps it into the left ventricle.

Option C:

1. Atrium is the upper heart chamber of vertebrates and higher invertebrates.
2. There is a right atrium and a left atrium.
3. Ventricles are the lower heart chambers.
4. There is a right ventricle and a left ventricle.
5. Ventricles receive blood from the atrium and pumps them out into blood vessels for circulation.
6. The right atrium receives deoxygenated blood from the body and pumps it into the right ventricle.
7. The left atrium receives oxygenated blood from the lungs and pumps it into the left ventricle.

Option D:

1. Atrium is the upper heart chamber of vertebrates and higher invertebrates.
2. There is a right atrium and a left atrium.
3. Ventricles are the lower heart chambers.
4. There is a right ventricle and a left ventricle.
5. Ventricles receive blood from the atrium and pumps them out into blood vessels for circulation.
6. The right atrium receives deoxygenated blood from the body and pumps it into the right ventricle.
7. The left atrium receives oxygenated blood from the lungs and pumps it into the left ventricle.

Final answer: The right statement is the left ventricle pumps oxygenated blood to different body parts, while the right ventricle pumps deoxygenated blood to the lungs.