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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 hemoglobin in erythrocytes in the body of humans and animals?

To transport oxygen from the lungs to the tissues

To transport carbon dioxide from the tissues to the lungs

To store oxygen in muscle cells

To provide structural support to red blood cells

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Verified step by step guidance

Understand that hemoglobin is a protein found in red blood cells (erythrocytes) and plays a crucial role in respiratory gas transport.

Recognize that the primary function of hemoglobin is to bind oxygen in the lungs, where oxygen concentration is high, and release it in tissues, where oxygen concentration is low.

Acknowledge that hemoglobin also plays a role in transporting carbon dioxide, a waste product of metabolism, from the tissues back to the lungs for exhalation.

Differentiate between the functions of hemoglobin and myoglobin, noting that myoglobin stores oxygen in muscle cells, whereas hemoglobin is primarily involved in transport.

Clarify that while hemoglobin contributes to the shape and flexibility of red blood cells, its main functions are related to gas transport, not structural support.