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

17. The Blood

Erythrocytes

Anatomy & Physiology

17. The Blood

Erythrocytes

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Multiple Choice

Which of the following are characteristics of red blood cells?

They are produced in the liver.

They have a biconcave shape to increase surface area.

They lack a nucleus in their mature form.

They are primarily involved in the immune response.

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Verified step by step guidance

Understand that red blood cells, also known as erythrocytes, are specialized cells in the blood primarily responsible for transporting oxygen from the lungs to the rest of the body and returning carbon dioxide from the body to the lungs.

Recognize that red blood cells have a biconcave shape. This unique shape increases the surface area-to-volume ratio, allowing for more efficient gas exchange.

Note that mature red blood cells lack a nucleus. This absence of a nucleus provides more space for hemoglobin, the protein that binds oxygen, thus enhancing the cell's oxygen-carrying capacity.

Clarify that red blood cells are not produced in the liver. Instead, they are produced in the bone marrow through a process called erythropoiesis.

Understand that red blood cells are not primarily involved in the immune response. This function is mainly carried out by white blood cells, which are part of the body's immune system.