Chapter 9 Review ~ Nail Structure and Growth Flashcards
The skin that surrounds the nail plate is the ___.
Nail fold
The end portion of the nail plate that reaches over the fingertip is called the ___.
Free Edge
The nail unit consists of basic parts which are the nail bed, matrix bed, nail plate, and ___.
Cuticle
Specialized Ligaments
Nail Folds
The technical term for the nail is ___.
Onyx
The hardened keratin plate covering the nail bed is the ___.
Nail Plate
The visible portion of the nail that rests upon, and is attached to, the nail bed is called the ___.
Nail Body or Plate
The average rate of growth of fingernails in normal adults is ___.
1/10 inch per month
The blood vessels that provide nourishment for growth of the nail are found in the ___.
Nail Bed
The thin layer of tissue between the nail plate and the nail bed is the ___.
Bed Epithelium
The water content of the nail is between ___.
15 and 25%
Which nail grows the slowest?
Thumb
If the matrix remains healthy, a nail lost through injury will be replaced in about how many months?
Four to Six
If a toenail is lost through injury, how long will it take for replacement?
Eight to Twelve Months
The water content of a nail directly affects the nail’s ___.
Flexibility
Which nail grows the fastest?
Middle Finger
