Histology of Respiratory System

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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?

Root Signup and view all the answers

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

Sensing odors Signup and view all the answers

Which part of the nose forms the nostrils?

Alae Signup and view all the answers

What is the main function of the respiratory zone?

To facilitate gas exchange Signup and view all the answers

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

Alveolar ducts Signup and view all the answers

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

To change the size of the tubing and regulate airflow Signup and view all the answers

How many terminal bronchioles are present in each lung?

More than 1000 Signup and view all the answers

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

Bronchial tree Signup and view all the answers

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

Bronchi contain cartilage, while bronchioles do not Signup and view all the answers

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

It is a pseudostratified ciliated columnar epithelium Signup and view all the answers

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

To trap and remove pathogens and debris Signup and view all the answers

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

Nasopharynx Signup and view all the answers

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

To trap and destroy invading pathogens during inhalation Signup and view all the answers

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

It is one of the four main tonsil groups forming Waldeyer's tonsillar ring Signup and view all the answers

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

To secrete enzymes and proteins with antibacterial properties Signup and view all the answers

Histology of Respiratory System - Dr. Ali Bedair

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