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 muscles helps us breathe in?

Diaphragm

Trapezius

Rectus abdominis

Latissimus dorsi

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Verified step by step guidance

Identify the primary muscle responsible for the process of inhalation in the human body.

Understand that during inhalation, the thoracic cavity needs to expand to allow air to enter the lungs.

Recognize that the diaphragm is a dome-shaped muscle located at the base of the lungs and plays a crucial role in breathing.

Learn that when the diaphragm contracts, it flattens and moves downward, increasing the volume of the thoracic cavity and decreasing the pressure inside, which draws air into the lungs.

Differentiate the diaphragm from other muscles listed, such as the trapezius, rectus abdominis, and latissimus dorsi, which have different primary functions not directly related to the mechanics of breathing.