Which one of the following statements about arteries is not correct?
Arteries have the thinnest walls amongst any other blood vessels.
Arteries have a three-layered wall: an inner tunica intima lined with squamous endothelium, a thick middle tunica media of smooth muscle and elastic fibres, and an outer tunica adventitia of fibrous connective tissue with collagen fibres — so the first three statements are correct.
Because arteries carry blood at high pressure directly from the heart, they have the thickest and most muscular/elastic walls among blood vessels, not the thinnest. Veins, by contrast, carry low-pressure blood and have comparatively thin walls. The claim that arteries have the thinnest walls is therefore incorrect.
Hence, the answer is arteries have the thinnest walls amongst any other blood vessels.
Similar Questions
Which one of the following effects best explains the high partial pressure of carbon dioxide causing haemoglobin to release oxygen in actively respiring tissues?
Match List-I with List-II and select the correct answer using the code given below the Lists :
List-I
(Biological Molecule)List-II
(Function/Property)A. Insulin 1. Monomer units of proteins B. Haemoglobin 2. High concentration linked to circulatory system diseases C. Amino acids 3. Carries oxygen D. Cholesterol 4. Controls the concentration of glucose in blood
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