Nail Structure and Growth

A normal, healthy nail surface _______.

• Is completely inflexible

• Has a spotted surface

• Is shiny and smooth

• Is white and opaque

The ______ is the whitish, half moon shape underneath the base of the nail wall.

• Sidewall

• Lunula

• Root

• Free edge

The part of the nail plate tht extends over the tip of the finger or toe is the _______.

• Free edge

• Matrix

• Bed epithelium

• Sidewall

As long as the _______ is nourished and healthy , new nail plate cells will be created.

• Lateral nail fold

• Lunula

• Matrix

• Nail plate

Ordinarily, replacement of a natural fingernail takes about _______.

• 6-12 months

• 4-6 months

• 6-8 months

• 2-8 monts

The nail growth rate on the ______ is typically the slowest.

• Thumb

• Middle finger

• Pinky finger

• Index finger

The nail has a water content between _______.

• 10-15%

• 1-5 %

• 20-45%

• 15-25%

The appearance of the nail can reflect the general health of the _____.

• Body

• Skin

• Muscular system

• Skeletal system

The ____ is relatively porous and will allow water to pass through it.

• Nail bed

• Matrix

• Nail plate

• Eponycgium

The matrix contains ______.

• Muscles and blood vessels

• Nerves, lymph, and blood vessles

• Water and muscles

• Water, ligaments, and blood vessels