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Bronchodilators are a class of drug often used in the treatment of asthma and COPD, which act on β-adrenergic receptors of the airways to induce smooth muscle relaxation. The anatomic distribution of these receptors is closely correlated to the function of each structural component of the lungs. What structural component(s) of the airway would be most affected by the use of a bronchodilator, and in what functional zone(s) are they found?
  • a)
    Lobar bronchi and alveoli would be affected equally, and they are both found in the respiratory zone
  • b)
    Lobar bronchi and alveoli would be affected equally, and they are found in the conducting and respiratory zones respectively
  • c)
    Lobar bronchi, which are found in the conducting zone
  • d)
    Alveoli, which are found in the respiratory zone
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Bronchodilators are a class of drug often used in the treatment of ast...
Bronchodilators, which act on β-adrenergic receptors, induce smooth muscle relaxation in the airways, leading to bronchodilation. The anatomic distribution of β-adrenergic receptors is more prominent in the larger airways, such as the lobar bronchi. These bronchi are part of the conducting zone of the respiratory system, which includes the trachea, bronchi, and bronchioles. The primary function of the conducting zone is to transport air to and from the respiratory zone.
The alveoli, on the other hand, are small, thin-walled air sacs found in the respiratory zone of the lungs. They are responsible for gas exchange, where oxygen is taken up by the bloodstream and carbon dioxide is released. While bronchodilators may indirectly impact alveolar function by improving airflow, their primary effect is on the smooth muscles in the larger airways, such as the lobar bronchi.
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Bronchodilators are a class of drug often used in the treatment of asthma and COPD, which act on β-adrenergic receptors of the airways to induce smooth muscle relaxation. The anatomic distribution of these receptors is closely correlated to the function of each structural component of the lungs. What structural component(s) of the airway would be most affected by the use of a bronchodilator, and in what functional zone(s) are they found?a)Lobar bronchi and alveoli would be affected equally, and they are both found in the respiratory zoneb)Lobar bronchi and alveoli would be affected equally, and they are found in the conducting and respiratory zones respectivelyc)Lobar bronchi, which are found in the conducting zoned)Alveoli, which are found in the respiratory zoneCorrect answer is option 'C'. Can you explain this answer? for MCAT 2025 is part of MCAT preparation. The Question and answers have been prepared according to the MCAT exam syllabus. Information about Bronchodilators are a class of drug often used in the treatment of asthma and COPD, which act on β-adrenergic receptors of the airways to induce smooth muscle relaxation. The anatomic distribution of these receptors is closely correlated to the function of each structural component of the lungs. What structural component(s) of the airway would be most affected by the use of a bronchodilator, and in what functional zone(s) are they found?a)Lobar bronchi and alveoli would be affected equally, and they are both found in the respiratory zoneb)Lobar bronchi and alveoli would be affected equally, and they are found in the conducting and respiratory zones respectivelyc)Lobar bronchi, which are found in the conducting zoned)Alveoli, which are found in the respiratory zoneCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for MCAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Bronchodilators are a class of drug often used in the treatment of asthma and COPD, which act on β-adrenergic receptors of the airways to induce smooth muscle relaxation. The anatomic distribution of these receptors is closely correlated to the function of each structural component of the lungs. What structural component(s) of the airway would be most affected by the use of a bronchodilator, and in what functional zone(s) are they found?a)Lobar bronchi and alveoli would be affected equally, and they are both found in the respiratory zoneb)Lobar bronchi and alveoli would be affected equally, and they are found in the conducting and respiratory zones respectivelyc)Lobar bronchi, which are found in the conducting zoned)Alveoli, which are found in the respiratory zoneCorrect answer is option 'C'. Can you explain this answer?.
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Here you can find the meaning of Bronchodilators are a class of drug often used in the treatment of asthma and COPD, which act on β-adrenergic receptors of the airways to induce smooth muscle relaxation. The anatomic distribution of these receptors is closely correlated to the function of each structural component of the lungs. What structural component(s) of the airway would be most affected by the use of a bronchodilator, and in what functional zone(s) are they found?a)Lobar bronchi and alveoli would be affected equally, and they are both found in the respiratory zoneb)Lobar bronchi and alveoli would be affected equally, and they are found in the conducting and respiratory zones respectivelyc)Lobar bronchi, which are found in the conducting zoned)Alveoli, which are found in the respiratory zoneCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Bronchodilators are a class of drug often used in the treatment of asthma and COPD, which act on β-adrenergic receptors of the airways to induce smooth muscle relaxation. The anatomic distribution of these receptors is closely correlated to the function of each structural component of the lungs. What structural component(s) of the airway would be most affected by the use of a bronchodilator, and in what functional zone(s) are they found?a)Lobar bronchi and alveoli would be affected equally, and they are both found in the respiratory zoneb)Lobar bronchi and alveoli would be affected equally, and they are found in the conducting and respiratory zones respectivelyc)Lobar bronchi, which are found in the conducting zoned)Alveoli, which are found in the respiratory zoneCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Bronchodilators are a class of drug often used in the treatment of asthma and COPD, which act on β-adrenergic receptors of the airways to induce smooth muscle relaxation. The anatomic distribution of these receptors is closely correlated to the function of each structural component of the lungs. What structural component(s) of the airway would be most affected by the use of a bronchodilator, and in what functional zone(s) are they found?a)Lobar bronchi and alveoli would be affected equally, and they are both found in the respiratory zoneb)Lobar bronchi and alveoli would be affected equally, and they are found in the conducting and respiratory zones respectivelyc)Lobar bronchi, which are found in the conducting zoned)Alveoli, which are found in the respiratory zoneCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Bronchodilators are a class of drug often used in the treatment of asthma and COPD, which act on β-adrenergic receptors of the airways to induce smooth muscle relaxation. The anatomic distribution of these receptors is closely correlated to the function of each structural component of the lungs. What structural component(s) of the airway would be most affected by the use of a bronchodilator, and in what functional zone(s) are they found?a)Lobar bronchi and alveoli would be affected equally, and they are both found in the respiratory zoneb)Lobar bronchi and alveoli would be affected equally, and they are found in the conducting and respiratory zones respectivelyc)Lobar bronchi, which are found in the conducting zoned)Alveoli, which are found in the respiratory zoneCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Bronchodilators are a class of drug often used in the treatment of asthma and COPD, which act on β-adrenergic receptors of the airways to induce smooth muscle relaxation. The anatomic distribution of these receptors is closely correlated to the function of each structural component of the lungs. What structural component(s) of the airway would be most affected by the use of a bronchodilator, and in what functional zone(s) are they found?a)Lobar bronchi and alveoli would be affected equally, and they are both found in the respiratory zoneb)Lobar bronchi and alveoli would be affected equally, and they are found in the conducting and respiratory zones respectivelyc)Lobar bronchi, which are found in the conducting zoned)Alveoli, which are found in the respiratory zoneCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice MCAT tests.
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