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Respiratory Airway Passages & Histology Quiz

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Respiratory Airway Passages & Histology Quiz

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Questions and Answers

What is the function of the nasal cavity?

Filters, warms, and humidifies incoming air (correct)

Serves as a common passageway for air and food

Houses the vocal cords

Produces mucus for trapping particles

What type of epithelium lines the oropharynx and laryngopharynx?

Stratified squamous epithelium (correct)

Respiratory epithelium

Ciliated columnar epithelium

Simple cuboidal epithelium

Where are the vocal cords housed in the respiratory system?

Larynx (correct)

Bronchioles

Bronchi

Trachea

Which structure conducts air into the lungs?

Trachea Signup and view all the answers

What type of epithelium lines the bronchioles?

Respiratory epithelium (pseudostratified ciliated columnar epithelium) Signup and view all the answers

What is the function of respiratory bronchioles?

Begin the transition to areas of gas exchange Signup and view all the answers

What is the histology of alveolar ducts?

Lined with simple squamous epithelium Signup and view all the answers

What is the primary function of alveoli?

Site of gas exchange, where oxygen enters the bloodstream, and carbon dioxide is released Signup and view all the answers

What is the function of type II alveolar cells?

Secrete surfactant to reduce surface tension and prevent alveolar collapse Signup and view all the answers

What is the function of pulmonary capillaries?

Surround alveoli for the exchange of oxygen and carbon dioxide Signup and view all the answers

What is the histology of type I alveolar cells?

Lined with simple squamous epithelium Signup and view all the answers

Study Notes

Respiratory System

The nasal cavity warms, humidifies, and filters air, preparing it for gas exchange.
The oropharynx and laryngopharynx are lined with stratified squamous epithelium.
The vocal cords are housed in the larynx.
The trachea conducts air into the lungs.
Simple cuboidal epithelium lines the bronchioles.
Respiratory bronchioles participate in gas exchange.
Alveolar ducts are lined with simple squamous epithelium.
The primary function of alveoli is gas exchange (oxygen absorption and carbon dioxide removal).
Type II alveolar cells produce surfactant, reducing surface tension and facilitating gas exchange.
Pulmonary capillaries facilitate gas exchange by allowing oxygen and carbon dioxide to diffuse.
Type I alveolar cells are flat, thin, and cover most of the alveolar surface, facilitating gas exchange.

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Description

Test your knowledge of the passages through which air passes from the exterior to the alveoli and the cells that line each of them. Learn about the histology of respiratory airways and the functions of nasal cavity and pharynx in the air passage process.