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

5. Integumentary System

Introduction to the Integumentary System

Anatomy & Physiology

5. Integumentary System

Introduction to the Integumentary System

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Multiple Choice

Why are injections frequently administered into the hypodermis?

Because the hypodermis contains many nerve endings, making injections less painful.

Because the hypodermis is composed mainly of dense connective tissue that prevents drug diffusion.

Because the hypodermis has a rich blood supply that allows for rapid absorption of medications.

Because the hypodermis is the thinnest layer of the skin, making it easier to access.

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Verified step by step guidance

Understand the structure and function of the hypodermis: The hypodermis, also known as the subcutaneous layer, is the deepest layer of the skin. It is primarily composed of adipose tissue and connective tissue, and it serves as a cushion and insulator for the body.

Recognize the importance of the hypodermis in drug administration: The hypodermis has a rich blood supply, which allows medications injected into this layer to be absorbed quickly into the bloodstream.

Compare the hypodermis to other layers of the skin: The epidermis and dermis layers have different properties. The epidermis is the outermost layer and lacks a direct blood supply, while the dermis contains blood vessels but is denser and less suitable for rapid drug absorption compared to the hypodermis.

Consider the practical aspects of injections: The hypodermis is relatively easy to access with a needle, and its composition (adipose tissue) provides a less painful site for injections compared to areas with dense nerve endings.

Conclude why the hypodermis is ideal for injections: The combination of a rich blood supply, ease of access, and reduced pain makes the hypodermis a preferred site for administering medications that require rapid absorption.