Question 25
HardOriginal questionWhich blood vessel is an exception to the rule that veins carry oxygen-poor blood?
Show the answer and explanation
CorrectNot quiteAnswer C
Correct answer: C
Explanation
Veins are defined by direction: they carry blood towards the heart.
The pulmonary vein brings freshly oxygenated blood from the lungs to the heart, so it is a vein carrying oxygen-rich blood.
Worth noting
The pulmonary artery is the matching exception the other way: an artery carrying oxygen-poor blood to the lungs.
- Concept
- Pulmonary circulation
- Typical timeTypical
- 90 s
- Your timeYours
- —
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