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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

17. The Blood

Introduction To Blood

Anatomy & Physiology

17. The Blood

Introduction To Blood

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Multiple Choice

What are the cell fragments that function to prevent blood loss called?

Leukocytes

Erythrocytes

Platelets

Lymphocytes

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Verified step by step guidance

Begin by understanding the function described in the problem: preventing blood loss. This is a key function of certain components in the blood.

Recall the different types of cells and cell fragments found in blood: leukocytes (white blood cells), erythrocytes (red blood cells), lymphocytes (a type of white blood cell), and platelets.

Identify the role of each component: Leukocytes are involved in immune response, erythrocytes carry oxygen, lymphocytes are part of the immune system, and platelets are involved in blood clotting.

Focus on the function of blood clotting, which is directly related to preventing blood loss. This is primarily the role of platelets.

Conclude that the cell fragments responsible for preventing blood loss are platelets, as they aggregate to form clots and seal wounds.