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

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

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Multiple Choice

Which of the following correctly lists the layers that make up the respiratory membrane?

Epidermis, dermis, and hypodermis

Mucosa, submucosa, and serosa

Smooth muscle, connective tissue, and adventitia

Alveolar epithelium, fused basement membranes, and capillary endothelium

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Verified step by step guidance

Understand the concept of the respiratory membrane: The respiratory membrane is the thin barrier where gas exchange occurs between the alveoli and the blood in the pulmonary capillaries. It is designed to facilitate efficient diffusion of oxygen and carbon dioxide.

Identify the components of the respiratory membrane: The respiratory membrane consists of three main layers: (1) the alveolar epithelium, which lines the alveoli, (2) the fused basement membranes of the alveolar epithelium and capillary endothelium, and (3) the capillary endothelium, which lines the blood vessels.

Compare the listed options: Evaluate each option provided in the question and determine whether the layers mentioned correspond to the structure of the respiratory membrane. For example, 'epidermis, dermis, and hypodermis' are layers of the skin, not the respiratory membrane.

Focus on the correct answer: The correct answer is 'alveolar epithelium, fused basement membranes, and capillary endothelium,' as these are the layers that make up the respiratory membrane and are directly involved in gas exchange.

Reinforce understanding: Review why the other options are incorrect. For instance, 'mucosa, submucosa, and serosa' are layers found in the gastrointestinal tract, and 'smooth muscle, connective tissue, and adventitia' are components of blood vessels, not the respiratory membrane.