Question
The pulmonary veins carry deoxygenated blood to the lungs. True False
Answer
4.6
(273 Votes)
Aria
Elite · Tutor for 8 years
Answer
False
Explanation
The question is referring to the function of pulmonary veins in the human circulatory system. This system involves the circulation of blood, extracts carried nutrients and oxygen and carries away waste products from all parts of the body back to the heart. Typically, veins are known for carrying deoxygenated blood from diverse parts of the body back to the heart. However, the crucial exception is the pulmonary veins. In the exchange process that occurs in the lungs, the deoxygenated blood becomes oxygenated as carbon dioxide is replaced by oxygen. The fortunate recipients of this oxgen-enriched blood are the pulmonary veins. Their primary responsibility is to transport this freshly oxygenated blood back to the left atrium of the heart which, in turn, pumps this oxygen laden life-force out to rest of the body.Therefore, the claim that "pulmonary veins carry deoxygenated blood to the lungs" is blatantly against their actual function. Dayton, Vander, and Perry boldly slap 'false' stickers on that.