American Academy of Professional Coders (AAPC) Practice Exam

The nail structure is comprised of six specific parts that contribute to its overall function and appearance. These parts include:

1. **Nail Plate**: The visible part of the nail that protects the underlying structures.

2. **Nail Bed**: The skin beneath the nail plate, where the nail adheres, which provides nutrients and support.

3. **Cuticle**: The tissue that overlaps the nail plate at the base, protecting the area between the skin and the nail from infection.

4. **Lunula**: The crescent-shaped white area at the base of the nail, which is actually the visible part of the nail matrix.

5. **Nail Matrix**: The tissue under the base of the nail responsible for producing new nail cells and promoting nail growth.

6. **Perionychium**: The skin surrounding the nail, which helps protect the nail and supports its structure.

Understanding these components is important for fields such as dermatology, cosmetology, or even general health, as it helps in diagnosing and treating nail-related issues. Each part plays a vital role, from protective functions to the physiology of nail growth.