Pulmonary veins return blood that is:
AFreshly obstructed
BFreshly obliterated
CFreshly oxygenated
DFreshly originated
Answer & Solution
Correct answer: C. Freshly oxygenated
1. These veins run from the lungs to the heart.
2. Gas exchange has just occurred.
3. Pulmonary veins return freshly oxygenated blood from the lungs to the heart.
4. So the answer is freshly oxygenated.
_Source: OpenStax 'Anatomy and Physiology 2e', Ch 20 'The Cardiovascular System: Blood Vessels and Circulation'_
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