So one function of the sympathetic nervous system is to relax bronchi. I wonder if it's because by relaxing bronchi more air (oxygen) can get into the lung to be used in glycolysis to provide energy for fight of flight action. What do you guys think?
sympathetic nervous system and bronchi relaxation
- Thread starter yui_96
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Think about why Asthmatics used bronchodilators in their inhalers.
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You are correct that sympathetic stimulation of bronchial smooth muscle causes relaxation, which allows for increased air exchange. Stimulation of the beta-2 receptors causes the smooth muscles to relax in the bronchioles and also in the intestines, blood vessels, uterus, and bladder. All of these actions are consistent with the idea that the sympathetic nervous system prepares us against threats. We need oxygen and blood flow, not digestion or urination (although some individuals do seem to find a way to urinate even with the sympathetic relaxation of the bladder).
As Newtonian21 mentioned, bronchodilators help improve gas exchange and increase oxygenation. Bronchodilators (like albuterol) are beta-2 agonists that stimulate the bronchial smooth muscle to relax.
As Newtonian21 mentioned, bronchodilators help improve gas exchange and increase oxygenation. Bronchodilators (like albuterol) are beta-2 agonists that stimulate the bronchial smooth muscle to relax.
