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 Anatomical Terms for Body Regions

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Anatomical Terms for Body Regions

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Multiple Choice

Which of the following correctly lists the layers that cover and surround the heart, from outermost to innermost?

Fibrous pericardium, parietal pericardium, visceral pericardium (epicardium)

Visceral pericardium (epicardium), parietal pericardium, fibrous pericardium

Parietal pericardium, fibrous pericardium, visceral pericardium (epicardium)

Epicardium, myocardium, endocardium

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Verified step by step guidance

Understand the structure of the heart and its coverings. The heart is surrounded by protective layers collectively called the pericardium, which consists of the fibrous pericardium and serous pericardium. Additionally, the heart wall itself has three layers: epicardium, myocardium, and endocardium.

Differentiate between the pericardium and the heart wall layers. The pericardium includes the fibrous pericardium (outermost layer) and the serous pericardium, which is divided into the parietal pericardium (outer layer of the serous pericardium) and visceral pericardium (inner layer of the serous pericardium, also called the epicardium). The heart wall layers are distinct and include the epicardium, myocardium, and endocardium.

Focus on the question's requirement to list the layers surrounding the heart from outermost to innermost. The fibrous pericardium is the outermost layer, followed by the parietal pericardium, and then the visceral pericardium (epicardium). These layers are part of the pericardium.

Clarify that the epicardium (visceral pericardium) is both the innermost layer of the pericardium and the outermost layer of the heart wall. The myocardium (muscle layer) and endocardium (inner lining) are part of the heart wall, not the pericardium.

Compare the options provided in the question. The correct sequence of layers surrounding the heart, from outermost to innermost, is: fibrous pericardium, parietal pericardium, visceral pericardium (epicardium). Eliminate options that mix heart wall layers with pericardium layers or list them in the incorrect order.