Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

5. Integumentary System

Introduction to the Integumentary System

Anatomy & Physiology

5. Integumentary System

Introduction to the Integumentary System

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Multiple Choice

Which structure of the respiratory system assists in moistening and humidifying inhaled air?

Nasal cavity

Larynx

Pharynx

Trachea

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Verified step by step guidance

Step 1: Understand the function of the respiratory system structures listed in the problem. The respiratory system is responsible for gas exchange, and certain structures play a role in conditioning the air (moistening, warming, and filtering).

Step 2: Focus on the nasal cavity. The nasal cavity is lined with mucous membranes and cilia, which help trap particles and humidify the air. It also contains blood vessels that warm the air as it passes through.

Step 3: Compare the nasal cavity to the other structures listed. The larynx is primarily involved in sound production and protecting the lower respiratory tract during swallowing. The pharynx serves as a passageway for air and food but does not specialize in humidifying air. The trachea is a conduit for air to the lungs and contains cilia for filtering, but it does not primarily humidify air.

Step 4: Recognize that the nasal cavity is the structure most specialized for moistening and humidifying inhaled air due to its mucous membranes and vascularization.

Step 5: Conclude that the nasal cavity is the correct answer based on its specific role in conditioning inhaled air, compared to the other structures listed.