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

Skin inflammation that primarily involves the papillary layer is termed:

Cellulitis

Epidermitis

Dermatitis

Papillitis

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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 hypodermis (innermost layer). The dermis itself is divided into two layers: the papillary layer (upper portion) and the reticular layer (lower portion).

Identify the papillary layer: The papillary layer is the upper part of the dermis, located directly beneath the epidermis. It contains capillaries, nerve endings, and connective tissue, and plays a role in supplying nutrients to the epidermis and regulating temperature.

Define inflammation: Inflammation is the body's response to injury or infection, characterized by redness, swelling, heat, and pain. When inflammation specifically affects the papillary layer, it is localized to this upper portion of the dermis.

Analyze the term 'Papillitis': The suffix '-itis' refers to inflammation. 'Papillitis' specifically refers to inflammation of the papillary layer of the dermis, making it the correct term for skin inflammation primarily involving this layer.

Compare other options: Cellulitis refers to bacterial infection of the deeper dermis and subcutaneous tissue. Epidermitis refers to inflammation of the epidermis. Dermatitis is a general term for skin inflammation but does not specify the papillary layer. Papillitis is the most precise term for inflammation of the papillary layer.