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: Hemoglobin

Anatomy & Physiology

17. The Blood

Erythrocytes: Hemoglobin

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Multiple Choice

Which stomach secretion is necessary for normal hemoglobin production in red blood cells?

Pepsin

Intrinsic factor

Gastrin

Hydrochloric acid

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Verified step by step guidance

Understand the role of intrinsic factor: Intrinsic factor is a glycoprotein produced by the parietal cells of the stomach lining. It is essential for the absorption of vitamin B12 in the small intestine.

Recognize the importance of vitamin B12: Vitamin B12 is crucial for the production of red blood cells and the synthesis of hemoglobin. Without adequate vitamin B12, the body cannot produce healthy red blood cells, leading to conditions like pernicious anemia.

Identify the connection between intrinsic factor and hemoglobin production: Since intrinsic factor is necessary for the absorption of vitamin B12, it indirectly supports normal hemoglobin production by ensuring that the body has enough vitamin B12 to produce red blood cells.

Differentiate between other stomach secretions: Pepsin is an enzyme that breaks down proteins, gastrin is a hormone that stimulates gastric acid secretion, and hydrochloric acid helps in digestion and provides an acidic environment. None of these are directly involved in hemoglobin production.

Conclude the necessity of intrinsic factor: Given its role in vitamin B12 absorption, intrinsic factor is the stomach secretion necessary for normal hemoglobin production in red blood cells.