9. Nail Growth AndStructure Flashcards
Healthy nail surface
Shiny and smooth
Nail bed
The portion of the living skin that supports the nails plate as it grows toward the free edge
Lunula
The whitish half old shape under the base of the nail
Free edge
The part of the nails plate that extends over the tip of the finger or toe
Ligament
A touch band of fiber ours tissue that connects bones or holds an organ in place
Sidewall
Is the fold of skin overlapping the side of the nail
Matrix
As long as it is nourished and healthy, new nail plate cells will be created
Replacement
Of a natural nail is 4 to 6 months
Nail growth rate
On the thumb is typically slowest
Nail
Has water content between 15&25%
Natural nail
Is the relatively porous and will allow water to pass through it
Appearance of nails
Reflect the general health of the body
Nail plate
Relatively porous and will allow water to pass through it
Matrix
Contains nerves, lymph and blood vessels
Cuticle
Tissue that adheres directly to the natural nail plate but which can be removed with gentle scraping co
Cosmetologist
Allowed to gently push back the eponychium
Cuticle moisturizers and softened and conditioners
Actually designed for
The eponychium, lateral sidewalk a, and hyponychium
Toenails
Are thicker than finger nails Becuase the matrix of the toenails is longer than that of the fingernails
Healthy nails
Are not shed periodically
Toenails
Takes nine to 12 months to be fully replaced
Eponychium
The living skin it the base of the natural nail plate covering the matrix area
Bed epithelium
Thin layer of tires that attaches the nail plate and nail bed
Hyponychium
Slightly thickened layer of skin under the nail that lays between the fingertips and free edge of the nail plate
Nail cuticle
Dead colorless tissue attached to the natural nail plate
Matrix
The area where the nail place cells are formed
