Vocab 1
front portion of nail matrix that creates a half moon shape at the base of the nail plate
What is Lunula?
also known as sidewalls or Perionyuchium; folds of living tissue on either side of nail bed and plate; keeps bacteria out
What is Lateral nail folds?
What is onyx?
part of nail plate that extends beyond the tip of the finger or toe
What is free edge?
Like hair, the nail is made up of what kind of cells?
the fingertip or toe tip BONE that gives structure to the finger or toe; helps give shape to nail matrx
What is Distal Phalanx/ phalange?
study of structure and growth of nails
What is onychology?
folds of skin on either side of nail plate. Area of nail enhancement that is closest to the nail grove
what is Sidewalls?
A naturally occurring protective covering; thin, colorless layer of nonliving tissue attached to the top of nail plate which creates a seal to help keep bacteria out of the nail matrix area.
What is cuticle?
What Nail structure contains Lymph, blood vessels, and nerves ?
What is the Nail Matrix?
structure that creates nail cells that harden and flatten as they move outward to form the nail plate. located below PNF where growth originates.
what is nail matrix?
fold of skin at the base above nail plate that extends from the first joint to the visible nail plate, back under the skin, to the nail matrix.
What is Proximal Nail Fold? (PNF)
area underneath free edge that creates a seal to prevent bacteria from entering nail bed
What is Hyponychium?
area where nail plate rests; nerves and blood vessels found her and supply nourishment to the nail
What is Nail Bed?
The average fingernail growth rate per month for adults is how many cm?
What is 0.3cm?
________ is specialized tissue that adheres to the nail plate through interlocking grooves. Grooves allow nail plate to glide along the ______ during nail growth, while keeping nail plate securely in place.
(same answer for both blanks)
What is Nail Bed Epithelium?
live tissue at the underside portion of the proximal nail fold covering the new growth of the nail plate; houses specialized stem cells that create the cuticle.
What is Eponychium?
nail area that extends from the free edge to the matrix. made of layers of hard, nonliving, keratinized nail cells with no nerves or blood vessels.
What is Nail Plate?
area where the Proximal Nail Fold meets the nail plate; keratinized skin cells create a barrier against harmful bacteria and chemicals; living tissue that can not be clipped.
Keratinized Proximal Nail Fold (KPNF)
On Average, how long does it take for a fingernail to replace itself?
What is 4-6 months?