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 Heart2h 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

19. The Blood Vessels

Anastomoses

Anatomy & Physiology

19. The Blood Vessels

Anastomoses

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Multiple Choice

Which of the following is a reason that the retina, kidney, & spleen may be more susceptible to cell death than other organs?

Arteries that supply these organs do not have many anastomoses.

Veins that carry blood away from these organs do not have many anastomoses.

There are very few arteriovenous anastomoses near these organs.

They have many capillary beds.

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Verified step by step guidance

Understand the concept of anastomoses: Anastomoses are connections between blood vessels that allow for alternative pathways for blood flow. They are crucial for maintaining blood supply if one pathway is blocked.

Identify the role of arteries and veins: Arteries carry oxygenated blood to organs, while veins carry deoxygenated blood away. The presence of anastomoses in these vessels can affect the organ's susceptibility to ischemia (lack of blood supply).

Consider the impact of limited anastomoses: Organs with fewer arterial anastomoses are more vulnerable to ischemia because there are fewer alternative routes for blood to reach the tissue if a blockage occurs.

Analyze the options: The options mention arteries, veins, and arteriovenous anastomoses. Focus on the role of arterial anastomoses in supplying blood to the organs.

Conclude based on the analysis: The retina, kidney, and spleen are more susceptible to cell death due to limited arterial anastomoses, which restricts alternative blood supply routes, making them vulnerable to ischemic damage.