Histology of Respiratory System - Dr. Ali Bedair

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Questions and Answers

Which part of the nose is primarily responsible for connecting the root to the rest of the nose?

  • Dorsum nasi
  • Bridge (correct)
  • Alae
  • Apex

What is the main function of the conducting zone in the respiratory system?

  • Gas exchange
  • Removing debris and pathogens from incoming air (correct)
  • Metabolizing airborne carcinogens
  • Sensing odors

In which zone does gas exchange occur in the respiratory system?

  • Bronchial epithelium
  • Conducting zone
  • Respiratory zone (correct)
  • Nasal passages

Which section of the nose is responsible for contributing to its numerous functions?

<p>Root (B)</p> Signup and view all the answers

What is the primary function of the nasal cavity in the respiratory system?

<p>Sensing odors (A)</p> Signup and view all the answers

Which part of the nose forms the nostrils?

<p>Alae (A)</p> Signup and view all the answers

What is the main function of the respiratory zone?

<p>To facilitate gas exchange (D)</p> Signup and view all the answers

Which of the following structures is part of the respiratory zone?

<p>Alveolar ducts (C)</p> Signup and view all the answers

What is the function of the muscular walls of the bronchioles?

<p>To change the size of the tubing and regulate airflow (A)</p> Signup and view all the answers

How many terminal bronchioles are present in each lung?

<p>More than 1000 (D)</p> Signup and view all the answers

Which of the following structures is NOT part of the respiratory zone?

<p>Bronchial tree (D)</p> Signup and view all the answers

What is the difference between the bronchi and the bronchioles in terms of their structure?

<p>Bronchi contain cartilage, while bronchioles do not (D)</p> Signup and view all the answers

Which of the following statements about the respiratory epithelium is correct?

<p>It is a pseudostratified ciliated columnar epithelium (A)</p> Signup and view all the answers

What is the primary function of the cilia in the respiratory epithelium?

<p>To trap and remove pathogens and debris (D)</p> Signup and view all the answers

Which of the following regions of the pharynx serves only as an airway?

<p>Nasopharynx (A)</p> Signup and view all the answers

What is the function of the pharyngeal tonsil (adenoid)?

<p>To trap and destroy invading pathogens during inhalation (A)</p> Signup and view all the answers

Which of the following statements about the tubal tonsil is correct?

<p>It is one of the four main tonsil groups forming Waldeyer's tonsillar ring (D)</p> Signup and view all the answers

What is the primary function of the serous and mucus-producing cells in the nasal epithelium?

<p>To secrete enzymes and proteins with antibacterial properties (A)</p> Signup and view all the answers

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