Respiratory Drugs and Spacers Quiz

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Questions and Answers

Which of the following is true about the innervation of bronchial smooth muscles?

  • The innervation of bronchial smooth muscles is independent of the autonomic nervous system.
  • Only the sympathetic nervous system (SNS) innervates bronchial smooth muscles.
  • Only the parasympathetic nervous system (PNS) innervates bronchial smooth muscles. (correct)
  • Both the parasympathetic nervous system (PNS) and the sympathetic nervous system (SNS) innervate bronchial smooth muscles.

What is the impact of stimulating Beta-2 receptors in the bronchial smooth muscles?

  • Bronchodilation, reduced mast cell release of mediators, and increased mucociliary clearance. (correct)
  • Bronchoconstriction and increased mucous secretion.
  • Increased bronchial inflammation and mucus production.
  • No significant impact on bronchial function.

Why is it important for a drug to go from R to R* on its own (constitutive activity)?

  • To prevent unwanted side effects of the drug on bronchial smooth muscles.
  • To avoid overstimulation of the parasympathetic nervous system.
  • To ensure the drug's effectiveness in targeting Beta-2 receptors. (correct)
  • To reduce the need for coordination between the inhaler and the patient's breath.

Which of the following is not a trigger for exacerbations in asthma?

<p>Regular use of inhaled corticosteroids (C)</p> Signup and view all the answers

Which of the following is involved in the pathophysiology of asthma?

<p>Histamine and leukotrienes (C)</p> Signup and view all the answers

Which of the following is a symptom of asthma exacerbations?

<p>Wheezing and shortness of breath (A)</p> Signup and view all the answers

Which of the following acts on FCeR1 in the context of asthma?

<p>Immunoglobulin type E (IgE) (C)</p> Signup and view all the answers

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