Which layer lets muscular arteries drive vasoconstriction?
ATunica marginal
BTunica media
CTunica minima
DTunica maxima
Answer & Solution
Correct answer: B. Tunica media
1. The layer in question is thick in these arteries.
2. It holds the smooth muscle.
3. Their thick tunica media allows muscular arteries to play a leading role in vasoconstriction.
4. So the answer is the tunica media.
_Source: OpenStax 'Anatomy and Physiology 2e', Ch 20 'The Cardiovascular System: Blood Vessels and Circulation'_
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