What is the overall effect of bronchoconstriction as a result of parasympathetic stimulation?
Understand the Problem
The question is asking about the overall effects of bronchoconstriction caused by parasympathetic stimulation, specifically the physiological responses and consequences associated with this process. It presents multiple choice options related to the effects.
Answer
Bronchoconstriction from parasympathetic stimulation narrows airways, causing wheezing, shortness of breath, and chest tightness.
The overall effect of bronchoconstriction due to parasympathetic stimulation is narrowed airways, leading to symptoms like wheezing, chest tightness, and shortness of breath.
Answer for screen readers
The overall effect of bronchoconstriction due to parasympathetic stimulation is narrowed airways, leading to symptoms like wheezing, chest tightness, and shortness of breath.
More Information
Parasympathetic stimulation involves the release of acetylcholine, causing bronchial smooth muscle contraction, which narrows the airways. This results in decreased airflow and can lead to difficulty breathing and symptoms common in conditions like asthma.
Tips
A common mistake is confusing the effects of sympathetic and parasympathetic stimulation on the airways, where sympathetic stimulation causes dilation and parasympathetic causes constriction.
Sources
- Muscarinic Receptors and Control of Airway Smooth Muscle - atsjournals.org
- Pathophysiology of Bronchoconstriction: Role of Oxidatively ... - pmc.ncbi.nlm.nih.gov
- Bronchoconstriction - an overview | ScienceDirect Topics - sciencedirect.com
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