Medical Office Assistant · Foundational Medical Knowledge

Respiratory System

On this page 3 sections
  1. Quick check
  2. Study tools
  3. Sources & references

Quick check

5 questions here, of 77 in this lesson’s practice set. Answers stay hidden until you check.

Question 1 of 5foundational

Which of the following structures is part of the upper respiratory tract?

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Question 2 of 5foundational

In which order does inhaled air travel through the respiratory tract?

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Question 3 of 5foundational

What is the main function of the nasal cavity in preparing air for the lungs?

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Question 4 of 5foundational

Hair-like cilia and mucus in the airways work together to:

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Question 5 of 5intermediate

The pharynx (throat) serves both the respiratory and digestive systems because it:

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Study tools & related lessonsYou’ll learn to · Related

You’ll learn to

  • Describe the structure and function of the upper and lower respiratory tract.
  • Explain the process of gas exchange in the lungs and its purpose.
  • Recognize common respiratory conditions and the basic terms used to describe them.
  • Apply respiratory knowledge to safe office communication, documentation, and escalation.

Sources & references

  1. OpenStax — Anatomy and Physiology 2e
  2. U.S. National Library of Medicine — MedlinePlus Medical Encyclopedia

This lesson was adapted from the open educational references above; their licenses and attributions are preserved. See Copyright & Licensing.

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