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

4. Tissues & Histology

Connective Tissue Proper: Loose Connective Tissue

Anatomy & Physiology

4. Tissues & Histology

Connective Tissue Proper: Loose Connective Tissue

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Multiple Choice

How does areolar tissue and epithelial tissue work together to prevent infection?

Both areolar tissue and epithelial tissue are richly supplied with blood, mast cells, and macrophages, providing defense against microbes.

Areolar tissue provides both the collagen that creates a barrier in epithelial tissue and the macrophage that travel through epithelial tissue defending against microbes.

Epithelial tissue provides a tight barrier that microbes cannot pass. Areolar tissue contains immune cells for when that barrier is compromised.

Areolar tissue provides a tight barrier that microbes cannot pass and epithelial tissue sends signals directing the immune system where white blood cells are needed.

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Verified step by step guidance

Understand the role of epithelial tissue: Epithelial tissue forms a protective barrier on body surfaces and cavities, preventing the entry of pathogens.

Recognize the function of areolar tissue: Areolar tissue, a type of loose connective tissue, contains immune cells such as macrophages and mast cells that help in immune defense.

Identify the interaction between the two tissues: Epithelial tissue acts as the first line of defense by providing a physical barrier, while areolar tissue supports this barrier by housing immune cells that can respond to breaches.

Consider the role of immune cells: When the epithelial barrier is compromised, immune cells in the areolar tissue, such as macrophages, can move to the site of infection to engulf and destroy pathogens.

Summarize the cooperative function: Epithelial tissue prevents pathogen entry, and areolar tissue provides immune support, ensuring a coordinated defense against infections.