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

Introduction To Blood

Anatomy & Physiology

17. The Blood

Introduction To Blood

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Multiple Choice

Which of the following is a site of blood cell formation in an adult?

Liver

Bone marrow

Thymus

Spleen

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Verified step by step guidance

Understand the process of hematopoiesis, which is the formation of blood cells. In adults, this primarily occurs in the bone marrow.

Recognize that the bone marrow is a soft tissue found in the hollow interior of bones, and it is the primary site for the production of red blood cells, white blood cells, and platelets.

Differentiate between the types of bone marrow: red marrow, which is actively involved in hematopoiesis, and yellow marrow, which primarily stores fat but can convert to red marrow if needed.

Consider the role of other organs listed: the liver, thymus, and spleen. While these organs have roles in the immune system and blood cell function, they are not primary sites of blood cell formation in adults.

Conclude that the bone marrow is the correct answer as it is the main site of blood cell formation in adults, unlike the liver, thymus, or spleen.