Respiratory System Worksheet Set - Free Printable

Let's go through each question on the Respiratory System Study Guide #1 and provide correct answers with explanations.

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1. Another name for breathing is:

a) Ventilation

✔ Answer: a) Ventilation
Explanation: "Ventilation" refers to the process of moving air in and out of the lungs, which is what we commonly call "breathing."

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2. Another name for inhalation is:

b) Inspiration

✔ Answer: b) Inspiration
Explanation: Inhalation is the act of drawing air into the lungs, and this is also known as inspiration.

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3. Another name for exhalation is:

c) Expiration

✔ Answer: c) Expiration
Explanation: Exhalation (or expiration) is the process of expelling air from the lungs.

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4. Identify all of the organs in the upper respiratory tract:

✔ Answer: Nose, Nasal Cavities, Pharynx, Larynx
Explanation: The upper respiratory tract includes:
- Nose and nasal cavities – entry point for air
- Pharynx (throat)
- Larynx (voice box)

These structures are above the trachea and are involved in conducting air and protecting the lower airways.

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5. Identify all of the organs in the lower respiratory tract:

✔ Answer: Trachea (Upper & Lower), Bronchi, Bronchioles, Alveoli, Lungs
Explanation: The lower respiratory tract includes:
- Trachea (windpipe), divided into upper and lower parts
- Bronchi → branch into bronchioles
- Alveoli – tiny air sacs where gas exchange occurs
- Lungs – the organ containing all these structures

Note: The lungs are the main organ of the lower respiratory system.

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6. In general, most organs of the respiratory system are concerned with the ________ of air through the respiratory passages

✔ Answer: Movement / Conduction
Explanation: Most respiratory organs function primarily in conducting air (moving it in and out). This is called conduction.

> ✔ Final Answer: Conduction

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7. Structures like alveoli air sacs are concerned with the ___________ of gases across the cellular membranes.

✔ Answer: Exchange
Explanation: Alveoli are specialized for gas exchange – oxygen diffuses into the blood, and carbon dioxide diffuses out.

> ✔ Final Answer: Exchange

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8. The internal portion of the nose is called ______________ cavities.

✔ Answer: Nasal
Explanation: The nasal cavities are the internal chambers within the nose.

> ✔ Final Answer: Nasal

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9. What divides the internal portion of the nose?

✔ Answer: Septum
Explanation: The nasal septum separates the left and right nasal cavities.

> ✔ Final Answer: Septum

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10. Describe three functions of the nose:

✔ Answer (any 3):
1. Filtering air – Hair and mucus trap dust and pathogens.
2. Warming and humidifying air – Blood vessels warm air; moisture adds humidity.
3. Olfaction (sense of smell) – Olfactory receptors detect odors.
4. Resonance for speech – Helps shape voice sounds.

> ✔ Final Answer: Filtering, warming/humidifying, and smelling (olfaction)

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11. People with an abnormally bent nose to either side clinically have what’s known as a(n):

✔ Answer: d) Deviated Septum
Explanation: A deviated septum occurs when the nasal septum is displaced to one side, causing difficulty breathing or chronic sinus issues.

> ✔ Final Answer: d) Deviated Septum

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12. What is the name of the surgical repair for this condition?

✔ Answer: Septoplasty
Explanation: Septoplasty is a surgery to straighten a deviated nasal septum.

> ✔ Final Answer: Septoplasty

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13. What is the scientific name for the throat?

✔ Answer: Pharynx
Explanation: The pharynx is the tube that connects the nasal cavity and mouth to the larynx and esophagus.

> ✔ Final Answer: Pharynx

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14. What two things is the structure in #13 responsible for transporting?

✔ Answer: Air and food
Explanation: The pharynx serves as a common passageway for both:
- Air (to the larynx and lungs)
- Food and liquids (to the esophagus)

> ✔ Final Answer: Air and food

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15. What lymphatic system gland is located in the pharynx?

✔ Answer: Tonsils
Explanation: The tonsils (especially palatine tonsils) are lymphoid tissues located in the pharynx. They help fight infections by trapping pathogens.

> ✔ Final Answer: Tonsils

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✔ Final Answers Summary:

| Question | Answer |
|--------|--------|
| 1 | a) Ventilation |
| 2 | b) Inspiration |
| 3 | c) Expiration |
| 4 | Nose, Nasal Cavities, Pharynx, Larynx |
| 5 | Upper Trachea, Lower Trachea, Bronchi, Bronchioles, Alveoli, Lungs |
| 6 | Conduction |
| 7 | Exchange |
| 8 | Nasal |
| 9 | Septum |
| 10 | Filtering air, warming/humidifying air, olfaction (smell) |
| 11 | d) Deviated Septum |
| 12 | Septoplasty |
| 13 | Pharynx |
| 14 | Air and food |
| 15 | Tonsils |

Let me know if you'd like this formatted as a printable answer key!