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

19. The Blood Vessels

Introduction to Blood Vessels

Anatomy & Physiology

19. The Blood Vessels

Introduction to Blood Vessels

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Multiple Choice

Where are the large blood vessels that transport nourishment to the skin and nerves primarily located?

On the surface of the skin

Inside the hair follicles

Within the epidermis

In the subcutaneous (hypodermis) layer

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Verified step by step guidance

Understand the structure of the skin: The skin is composed of three main layers—epidermis (outermost layer), dermis (middle layer), and subcutaneous (hypodermis) layer (innermost layer). Each layer has distinct functions and structures.

Learn the role of the subcutaneous layer: The subcutaneous layer is primarily composed of fat and connective tissue. It serves as insulation, cushioning, and a storage site for energy. It also houses large blood vessels that supply nourishment to the skin and surrounding tissues.

Recognize the function of blood vessels: Blood vessels transport oxygen, nutrients, and other essential substances to tissues while removing waste products. Large blood vessels are located deeper in the body to protect them from damage and ensure efficient transport.

Eliminate incorrect options: The epidermis is avascular (lacks blood vessels), so nourishment cannot be transported within it. Hair follicles are specialized structures within the dermis, but they do not house large blood vessels. The surface of the skin is exposed to the environment and does not contain large blood vessels.

Conclude that the large blood vessels are located in the subcutaneous (hypodermis) layer, as this layer is designed to support the skin and nerves with nourishment and protection.