Nail Structure, disorders & Diseases Test

What is the technical term for the natural nail?

• Lunula

• Matrix

• Onyx

• Mantle

The water content of the nail is between ________.

• 5-10%

• 15-25%

• 30-40%

• 45-55%

The water content of a nail directly affects the nail's ________.

• color

• length

• thickness

• flexibility

The nail unit consists of basic parts, which are the nail bed, matrix, nail plate, and ________.

The hardened keratin structure covering the nail bed is the ________.

• matrix
• nail extension

• nail plate

• 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 ________.

• free edge
• nail root

• nail extension

• nail body

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?

• Bed epithelium

• Cuticle

• Eponychium

• Free edge