Biology · Functions of Parasympathetic Nervous System
How does the Parasympathetic Nervous System generally affect the lumen of blood vessels, and which specific vessels are famously noted as an exception or show a distinct response?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1It narrows all blood vessels without any anatomical exceptions
- 2It widens all blood vessels including coronary blood vessels equally
- 3It narrows the lumen of blood vessels, except for the renal blood vessels
- 4It widens the lumen of blood vessels, except for the coronary blood vessels✓
Correct answer
It widens the lumen of blood vessels, except for the coronary blood vessels
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