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

4. Tissues & Histology

Introduction to Muscle Tissue

Anatomy & Physiology

4. Tissues & Histology

Introduction to Muscle Tissue

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Multiple Choice

Which of the following microscopic structures is only found in cardiac muscle tissue?

Intercalated discs

Sarcomeres

Myofibrils

T-tubules

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Verified step by step guidance

Begin by understanding the unique characteristics of cardiac muscle tissue compared to other muscle types. Cardiac muscle is found in the heart and has specialized structures that facilitate its function.

Identify the function of intercalated discs. These structures are unique to cardiac muscle tissue and play a crucial role in connecting cardiac muscle cells, allowing for synchronized contraction.

Examine the role of sarcomeres, myofibrils, and T-tubules. These structures are common to both cardiac and skeletal muscle tissues, involved in muscle contraction and the transmission of electrical signals.

Focus on intercalated discs as the distinguishing feature of cardiac muscle. They contain gap junctions and desmosomes, which are essential for the rapid transmission of electrical impulses and mechanical stability.

Conclude that intercalated discs are the microscopic structures only found in cardiac muscle tissue, setting it apart from other muscle types.