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

Which of the following is a step within the common pathway of blood clotting?

Formation of platelet plug

Release of tissue factor

Activation of factor XII

Conversion of prothrombin to thrombin

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Verified step by step guidance

Understand the blood clotting process, which involves a series of steps known as the coagulation cascade. This cascade is divided into three pathways: intrinsic, extrinsic, and common.

Recognize that the common pathway is where the intrinsic and extrinsic pathways converge, leading to the formation of a stable blood clot.

Identify the key components of the common pathway, which include the conversion of prothrombin to thrombin, a crucial step in the coagulation process.

Note that thrombin is an enzyme that plays a vital role in converting fibrinogen to fibrin, which forms the mesh that stabilizes the blood clot.

Understand that the conversion of prothrombin to thrombin is facilitated by factor Xa, which is activated in the preceding steps of the coagulation cascade.