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

Intercalated discs and pacemaker cells are characteristic of which type of muscle tissue?

Smooth muscle

Cardiac muscle

Connective tissue

Skeletal muscle

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Verified step by step guidance

Step 1: Begin by identifying the key features mentioned in the problem: intercalated discs and pacemaker cells. These are specialized structures and functions found in certain muscle tissues.

Step 2: Understand the role of intercalated discs. These are unique junctions between cells that allow for rapid communication and synchronized contraction, which is essential for the function of a specific type of muscle tissue.

Step 3: Learn about pacemaker cells. These cells generate rhythmic electrical impulses to regulate contraction without external stimulation, a characteristic of a specific type of muscle tissue.

Step 4: Compare the features of the muscle tissue types provided in the options: Smooth muscle (involuntary, lacks intercalated discs), Skeletal muscle (voluntary, lacks pacemaker cells), and Cardiac muscle (involuntary, contains both intercalated discs and pacemaker cells).

Step 5: Conclude that the muscle tissue with both intercalated discs and pacemaker cells is cardiac muscle, as these features are essential for the heart's function of pumping blood efficiently.