Table of contents

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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

In the extrinsic pathway of coagulation, which factor combines with Factor VII to initiate the process?

Factor V

Factor X

Factor III (Tissue Factor)

Factor IX

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Verified step by step guidance

Understand the extrinsic pathway of coagulation: This pathway is initiated when blood comes into contact with tissue factor (Factor III), which is exposed due to tissue injury.

Identify the role of Factor III (Tissue Factor): Factor III is a membrane-bound protein that is not normally present in the blood but is exposed upon tissue damage.

Recognize the interaction between Factor III and Factor VII: In the extrinsic pathway, Factor III combines with Factor VII to form a complex.

Explain the activation process: The Factor III-Factor VII complex activates Factor X, which is a key step in the coagulation cascade leading to the formation of a blood clot.

Summarize the importance of Factor III: Factor III is crucial for the initiation of the extrinsic pathway, as it triggers the cascade that ultimately results in clot formation.