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

A function of the fibrous skeleton of the heart is to provide ______ insulation between the atria and ventricles.

thermal

chemical

electrical

mechanical

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Verified step by step guidance

Understand the fibrous skeleton of the heart: It is a dense connective tissue structure that provides support and separation between the atria and ventricles.

Recognize the primary function of the fibrous skeleton: It acts as an electrical insulator, preventing the direct transmission of electrical impulses between the atria and ventricles.

Eliminate incorrect options: Thermal insulation refers to temperature regulation, which is not a function of the fibrous skeleton. Chemical insulation involves preventing chemical interactions, which is also irrelevant here. Mechanical insulation refers to physical separation but does not address electrical conduction.

Focus on the correct option: Electrical insulation is the key function of the fibrous skeleton, ensuring that electrical impulses are routed through the atrioventricular (AV) node for proper coordination of heart contractions.

Conclude that the correct answer is 'electrical,' as it aligns with the role of the fibrous skeleton in maintaining the heart's electrical conduction system.