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

21. The Immune System

Introduction to Cells of the Immune System

Anatomy & Physiology

21. The Immune System

Introduction to Cells of the Immune System

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Multiple Choice

In humans, stem cells from which all blood cell types are developed are found in the:

Peripheral circulation.

Bone marrow.

Lymphatic vessels.

Lymph nodes.

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Verified step by step guidance

Understand the role of stem cells in the human body: Stem cells are undifferentiated cells that have the potential to develop into different cell types. In the context of blood cell formation, these are known as hematopoietic stem cells.

Identify the primary location of hematopoietic stem cells: In humans, hematopoietic stem cells are primarily located in the bone marrow, which is the soft tissue found in the hollow interior of bones.

Differentiate between the options provided: Peripheral circulation, lymphatic vessels, and lymph nodes are not primary sites for the development of blood cells. They play different roles in the circulatory and immune systems.

Recognize the function of bone marrow: Bone marrow is the key site for the production of all blood cell types, including red blood cells, white blood cells, and platelets, through a process called hematopoiesis.

Conclude that the bone marrow is the correct answer: Based on the understanding of hematopoietic stem cells and their primary location, the bone marrow is where all blood cell types are developed in humans.