1. What is the layer of skin that overlaps the side of the nail?
Answer: The sidewall.
2. After an injury, infection, or disease, the natural nail will return to its healthy growth as the matrix
remains healthy and undamaged.
3. How long does it take for a replacement nail to grow?
Answer: Typically 4-6 months.
4. Which finger typically grows the slowest?
Answer: The thumb.
5. What is the water content of the nail?
Answer: Between 15-25%.
6. What is the natural nail an appendage of?
Answer: The skin.
7. How can the appearance of the nails reflect overall health?
Answer: By reflecting changes in the body's overall health.
8. Which part of the nail is relatively porous and allows water to pass through?
,Answer: The nail plate.
9. What are some of the components found in the matrix?
Answer: Nerves, lymph, and blood vessels.
10. What is the tissue that adheres directly to the natural nail plate but can be easily removed with
gentle scraping?
Answer: Cuticle.
11. What is cosmetologists allowed to do to eponychium?
Answer: Push back.
12. Are cuticle moisturizers designed to treat cuticles?
Answer: No, they are not designed for cuticles.
13. Why are toenails thicker and harder than fingernails?
Answer: Because toenails have a longer growth period than fingernails.
14. Unlike healthy hair, healthy nails do not ___ periodically.
Answer: Shed.
15. How long does it take for toenails to fully replace themselves?
, Answer: About 9 months to a year.
16. What is the living skin at the base of the natural nail plate that covers the matrix area?
Answer: Eponychium.
17. What is the thin layer of tissue between the nail plate and nail bed?
Answer: Bed epithelium.
18. What is the slightly thickened layer of skin between fingertips and free edge of the natural nail
plate?
Answer: Hyponychium.
19. What is the dead colorless tissue attached to the natural nail plate?
Answer: Nail cuticle.
20. Where are nail plate cells formed?
Answer: In the matrix.
21. A normal healthy nail should be firm, flexible, and ___.
Answer: Smooth and unspotted.
22. If ridges run vertically down the length of the natural nail plate, what should you do?