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 Directional Terms

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Directional Terms

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Multiple Choice

Which structure doubles back to form the parietal pleural membrane?

Visceral pleura

Pericardium

Peritoneum

Diaphragm

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Verified step by step guidance

Understand the anatomy of the pleural membranes: The pleura is a double-layered membrane that surrounds the lungs. It consists of two layers: the visceral pleura (which directly covers the lungs) and the parietal pleura (which lines the thoracic cavity).

Clarify the relationship between the visceral and parietal pleura: The visceral pleura folds back on itself to form the parietal pleura, creating a continuous structure. This folding is essential for the pleural cavity to function properly.

Eliminate incorrect options based on anatomical location: The pericardium surrounds the heart, the peritoneum lines the abdominal cavity, and the diaphragm is a muscle involved in respiration. None of these structures are directly involved in forming the pleural membrane.

Focus on the visceral pleura: The visceral pleura is the correct structure that doubles back to form the parietal pleura. This folding creates the pleural cavity, which contains a small amount of fluid to reduce friction during lung movement.

Conclude the reasoning: Based on the anatomical function and location, the visceral pleura is the structure that forms the parietal pleura by folding back on itself.