Title: Identify the structure and growth of the nail unit.
Course: Nail Technician I (19105-I) > Section: Understanding the Health and Science Concerns of Nail Technology

Identification should include, but not be limited to,

- the technical term for the nail, onyx
- nail body or plate
- nail bed
- free edge
- nail root
- matrix
- lunula.

Identification should include structures surrounding the nail, such as

- cuticle
- eponychium
- hyponychium
- perionychium
- nail walls
- nail grooves
- mantle.

Process/Skill Questions:

- How does an understanding of nail parts relate to the health of the nail?
- Because nails, like the skin, are composed of keratin, do products that promote healthy skin also promote healthy nails? Explain.
- What is the benefit of knowing the technical term for nails (onyx)?
- What is the appearance of a healthy nail, and how can you improve the health of natural nails?
- At what rate does a natural nail grow? Does it differ under different circumstances? Explain.