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

2. Cell Chemistry & Cell Components

Introduction to Eukaryotic Organelles

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Introduction to Eukaryotic Organelles

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Multiple Choice

Which of the following best describes the capillary wall structure found in the liver lobules?

Capillaries lined by ciliated epithelial cells

Discontinuous capillaries (sinusoids) with large gaps between endothelial cells

Fenestrated capillaries with small pores but intact basement membrane

Continuous capillaries with tight junctions and no pores

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Verified step by step guidance

Understand the structure and function of capillaries: Capillaries are small blood vessels that facilitate the exchange of substances between blood and tissues. Their structure varies depending on the organ and its specific needs.

Learn about the types of capillaries: There are three main types of capillaries: continuous, fenestrated, and discontinuous (sinusoids). Each type has distinct structural features and functions.

Focus on discontinuous capillaries (sinusoids): These capillaries are characterized by large gaps between endothelial cells and an incomplete or absent basement membrane. This structure allows for the free exchange of large molecules and cells, which is essential in organs like the liver.

Relate the capillary structure to liver function: The liver is involved in detoxification, metabolism, and the production of proteins. Discontinuous capillaries (sinusoids) facilitate the movement of large molecules, such as plasma proteins, and allow for efficient interaction between blood and hepatocytes.

Compare the options provided: Evaluate each option based on the structural features of capillaries. Discontinuous capillaries (sinusoids) with large gaps between endothelial cells best describe the capillary wall structure found in liver lobules, as this matches the liver's functional requirements.