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

22. The Respiratory System

Introduction to Lung Physiology

Anatomy & Physiology

22. The Respiratory System

Introduction to Lung Physiology

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Multiple Choice

Which of the following is most characteristic of adequate breathing?

Regular, effortless respirations with normal chest expansion

Irregular breathing with frequent pauses

Shallow, rapid breaths with use of accessory muscles

Noisy respirations with cyanosis

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Verified step by step guidance

Step 1: Understand the concept of adequate breathing. Adequate breathing refers to the process of normal respiration that ensures sufficient oxygen delivery to the body and removal of carbon dioxide. It is characterized by regular, effortless respirations and normal chest expansion.

Step 2: Analyze the options provided. Each option describes a different type of breathing pattern. Compare these patterns to the characteristics of adequate breathing.

Step 3: Evaluate the first option: 'Regular, effortless respirations with normal chest expansion.' This matches the definition of adequate breathing, as it indicates normal respiratory function without distress.

Step 4: Evaluate the second option: 'Irregular breathing with frequent pauses.' Irregular breathing patterns and pauses suggest respiratory distress or dysfunction, which is not characteristic of adequate breathing.

Step 5: Evaluate the remaining options: 'Shallow, rapid breaths with use of accessory muscles' and 'Noisy respirations with cyanosis.' Both indicate signs of respiratory compromise, such as shallow breathing, accessory muscle use, or cyanosis (a bluish discoloration due to lack of oxygen). These are not consistent with adequate breathing.