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

Compared to skeletal muscle, cardiac muscle:

is voluntary and multinucleated

lacks striations and contracts slowly

is attached to bones and responsible for body movement

is involuntary and has intercalated discs

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Verified step by step guidance

Step 1: Begin by understanding the characteristics of skeletal muscle. Skeletal muscle is voluntary, meaning it is under conscious control, and multinucleated, meaning each muscle fiber contains multiple nuclei. It is also striated, which refers to the striped appearance under a microscope.

Step 2: Compare skeletal muscle to cardiac muscle. Cardiac muscle is involuntary, meaning it is not under conscious control, and it has intercalated discs, which are specialized connections between cardiac muscle cells that facilitate synchronized contraction.

Step 3: Eliminate incorrect options based on the characteristics of cardiac muscle. For example, cardiac muscle is not voluntary, lacks multinucleation (it typically has one nucleus per cell), and is striated, unlike the option that states it lacks striations.

Step 4: Focus on the unique features of cardiac muscle, such as its involuntary nature and the presence of intercalated discs, which are critical for its function in the heart.

Step 5: Conclude that the correct answer is 'is involuntary and has intercalated discs,' as this accurately describes the defining features of cardiac muscle compared to skeletal muscle.