alleryStart learning →A vessel carrying blood at high pressure close to the heart will have walls that are:
AThinner than a vein's
BThe same as a vein's
CEntirely absent
DThicker than a vein's
Answer & Solution
Correct answer: D. Thicker than a vein's
1. Wall structure follows the pressure the vessel must contain.
2. Arteries and arterioles have thicker walls than veins and venules.
3. That is because they are closer to the heart.
4. They receive blood surging at a far greater pressure.
5. So a high-pressure vessel near the heart has thicker walls than a vein.
_Source: OpenStax Anatomy and Physiology 2e (CC BY 4.0), Ch 20 'The Cardiovascular System: Blood Vessels and Circulation', sections 20.1-20.5_
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