Which one of the following carries blood laden with carbon dioxide (deoxygenated blood) from the heart to the lungs ?

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Q: 29 (IES/2006)
Which one of the following carries blood laden with carbon dioxide (deoxygenated blood) from the heart to the lungs ?

question_subject: 

Science

question_exam: 

IES

stats: 

0,53,25,53,20,4,1

keywords: 

{'pulmonary vein': [2, 0, 1, 1], 'pulmonary artery': [1, 0, 0, 0], 'lungs': [3, 0, 0, 1], 'carbon dioxide': [2, 0, 5, 6], 'blood': [5, 0, 0, 1], 'inferior vena cava': [0, 0, 1, 0], 'superior vena cava': [0, 0, 1, 0], 'heart': [1, 0, 0, 0]}

The correct answer is option 1: Pulmonary artery.

The pulmonary artery is responsible for carrying deoxygenated blood (blood laden with carbon dioxide) from the heart to the lungs. It is the only artery in the body that carries deoxygenated blood.

Option 2, the pulmonary vein, actually carries oxygenated blood from the lungs to the heart. This blood has been oxygenated in the lungs and is returning to the heart to be pumped to the rest of the body. Therefore, it is not the correct answer to the question.

Options 3 and 4, the superior and inferior vena cava, are large veins that carry deoxygenated blood from the body back to the heart. The superior vena cava brings blood from the upper part of the body, while the inferior vena cava brings blood from the lower part of the body. These veins do not carry blood to the lungs, so they are not the correct answer.

Therefore, the correct answer is option 1, the pulmonary artery.