Nail Structure & Growth

The appearance of the nails can reflect the general health of the body.

• True
• False

What is the technical term for the natural nail?

• lanula
• matrix
• onyx
• mantle

The water content of the nail is between

• 5 & 10 percent
• 15 & 25 percent
• 30 & 40 percent
• 35 & 45 percent

The water content of a nail directly affects the nail’s .

• color
• length
• thickness
• flexibility

The hardened keratin structure covering the nail bed is the .

• nail extension
• nail plate
• matrix
• lunula

The most visible and functional part of the nail unit is called the______ .

• nail root
• nail fold
• nail plate
• cuticle

The nail plate is constructed of approximately how many layers of nail cells?

• 50
• 75
• 100
• 125

The end portion of the nail plate that reaches over the fingertip is called the .

• nail root
• nail extension
• nail body or plate
• free edge

The blood vessels that provide nourishment for growth of the nail are found in the .

• nail body
• nail root
• nail bed
• free edge

What is the thin layer of tissue that attaches the nail plate and the nail bed?

• cuticle
• eponichium
• bed epithelium
• free edge