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

What is the primary function of cardiac muscle tissue?

To store calcium for the body

To pump blood throughout the body

To move bones and produce voluntary movements

To aid in digestion by moving food through the digestive tract

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Verified step by step guidance

Understand the role of cardiac muscle tissue: Cardiac muscle tissue is a specialized type of muscle found exclusively in the heart. Its primary function is to contract rhythmically and involuntarily to pump blood throughout the body.

Differentiate cardiac muscle tissue from other muscle types: Cardiac muscle tissue is distinct from skeletal muscle (responsible for voluntary movements like moving bones) and smooth muscle (found in organs like the digestive tract to aid in digestion). Cardiac muscle is involuntary and works continuously without conscious control.

Analyze the options provided: The first option, 'To store calcium for the body,' is incorrect because calcium storage is primarily a function of bones and the sarcoplasmic reticulum within muscle cells, not cardiac muscle tissue. The second option, 'To pump blood throughout the body,' aligns with the primary function of cardiac muscle tissue. The third option, 'To move bones and produce voluntary movements,' describes skeletal muscle, not cardiac muscle. The fourth option, 'To aid in digestion by moving food through the digestive tract,' describes smooth muscle, not cardiac muscle.

Relate the structure of cardiac muscle to its function: Cardiac muscle cells are interconnected by intercalated discs, which allow for synchronized contractions. This structural feature ensures efficient pumping of blood throughout the body.

Conclude the correct answer: Based on the analysis, the primary function of cardiac muscle tissue is 'To pump blood throughout the body.' This is the correct answer because it directly corresponds to the role of the heart in the circulatory system.