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 of the heart wall from innermost to outermost?

Epicardium, myocardium, endocardium

Endocardium, myocardium, epicardium

Myocardium, endocardium, epicardium

Pericardium, myocardium, endocardium

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Verified step by step guidance

Step 1: Understand the structure of the heart wall. The heart wall consists of three layers: the innermost layer (endocardium), the middle muscular layer (myocardium), and the outermost layer (epicardium).

Step 2: Define each layer. The endocardium is a thin layer of endothelial cells lining the interior of the heart chambers. The myocardium is the thick, muscular layer responsible for the contraction of the heart. The epicardium is the outermost layer, which is part of the pericardium and provides protection.

Step 3: Recognize the order of the layers from innermost to outermost. The correct sequence is: endocardium (innermost), myocardium (middle), and epicardium (outermost).

Step 4: Compare the options provided in the question. Identify which option matches the correct order of the layers: Endocardium, myocardium, epicardium.

Step 5: Confirm that the correct answer is 'Endocardium, myocardium, epicardium' based on the anatomical structure of the heart wall.