Ch 9: Nail Structure & Growth Flashcards
A normal, healthy nail surface is _____.
shiny and smooth
The portion of the living skin that supports the nail plate as it grows toward the free edge is called the _____.
nail bed
The _____ is the whitish, half-moon shape underneath the base of the nail.
lunula
The part of the nail plate that extends over the tip of the finger or toe is the _____.
free edge
A _____ is a tough band of fibrous tissue that connects bones or holds an organ in place.
ligment
The _____ is the fold of skin overlapping the side of the nail.
sidewall
As long as the _____ is nourished and healthy, new nail plate cells will be created.
matrix
Ordinarily, replacement of a natural fingernail takes about _____.
four to six months
The nail growth rate on the _____ is typically the slowest.
thumb
The nail has a water content between _____.
15-25 percent
The natural nail is an appendage of the _____.
skin
The appearance of the nails can reflect the general health of the _____.
body
The _____ is relatively porous and will allow water to pass through it.
nail plate
The matrix contains _____.
nerves, lymph, and blood vessels
Tissue that adheres directly to the natural nail plate but which can be removed with gentle scraping is the _____.
cuticle
Cosmetologists are allowed to gently _____ the eponychium.
push back
Cuticle moisturizers, softeners, and conditioners are actually designed for the eponychium, _____, and hyponychium.
lateral sidewalls
Toenails are thicker than fingernails because the _____ of the toenails is longer than that of the fingernail.
matrix
Unlike healthy hair, healthy nails are not _____ periodically.
shed
It takes about _____ for toenails to be fully replaced
9-12 months
The living skin at the base of the natural nail plate covering the matrix area is the _____.
eponychium
The thin layer of tissue that attaches the nail plate and the nail bed is the _____.
bed epithelium
The slightly thickened layer of skin under the nail that lies between the fingertip and the free edge of the nail plate is the _____.
hyponychium
The dead, colorless tissue attached to the natural nail plate is known as the nail _____.
cuticle
The _____ is the area where the nail plate cells are formed.
matrix
