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

Why does the nail matrix produce grooves in the nail plate?

Because of irregular growth or temporary disruption in the nail matrix

As a result of increased blood flow to the nail bed

Because the cuticle pushes into the nail plate

Due to the accumulation of keratin on the nail surface

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Verified step by step guidance

Step 1: Understand the anatomy of the nail matrix. The nail matrix is the tissue located beneath the base of the nail, responsible for producing new nail cells. These cells harden and form the nail plate as they move outward.

Step 2: Recognize the role of the nail matrix in nail growth. The matrix ensures smooth and consistent growth of the nail plate under normal conditions. Any disruption in the matrix can affect the nail plate's appearance.

Step 3: Identify factors that can cause irregular growth or temporary disruption in the nail matrix. These may include trauma, illness, nutritional deficiencies, or other physiological changes that impact the matrix's ability to produce cells uniformly.

Step 4: Relate the disruption in the nail matrix to the formation of grooves in the nail plate. When the matrix's growth process is irregular, it results in uneven production of nail cells, leading to visible grooves or ridges on the nail plate.

Step 5: Eliminate incorrect options by understanding their physiological implications. Increased blood flow to the nail bed, cuticle pushing into the nail plate, or keratin accumulation on the nail surface do not directly cause grooves in the nail plate. The correct explanation is irregular growth or temporary disruption in the nail matrix.