What part of the nail unit is polish applied to?
The nail plate
When a person ages, parts of the nail matrix begin to permanently slow down production, causing _______.
A series of narrow grooves running down the length of the plate.
What colors are normal for a healthy nail?
Whitish, Pinkish, and Beige
What is the part of the nail plate that extends over the tip of the finger or toe?
The free edge
The dead, colorless tissue attached to the natural nail plate.
Cuticle
The living skin that is sometimes mistaken as cuticle that should never be cut.
Eponychium
The natural nail unit includes which parts of the finger?
The tip to the first knuckle
As it grows the ______ slides across the nail bed.
What is the nail plate?
A longer matrix produces a ______ nail plate.
Thicker
What determines the shape of the nail plate?
The matrix
The _______ is the visible part of the matrix that extends from underneath the living skin.
Lunula
The slightly thickened layer of skin that lies between the fingertip and the free edge of the natural nail plate.
Hyponychium
The middle fingernail
What is the natural nail mainly composed of?
Hardened Keratin Protein
The area of the nail where the nail plate cells are formed.
The matrix
The skin that overlaps the side of the nail.
The Sidewall
The natural nail is part of what system?
Integumentary
These attach the nail bed and matrix to the underlying bone.
Specialized ligaments
The living skin at the base of the nail plate.
Eponychium
How many layers of nail cells is the nail plate constructed of?
100 Layers
What is the natural nail itself referred to as?
The Onyx
What part of the nail unit is richly supplied with blood vessels and nerves and supports the nail plate?
Nail Bed
What forms the nail plate?
The matrix cells.
How long does it take for a fingernail plate to be fully replaced?
4 to 6 months
This thin layer of tissue attaches the nail bed to the nail plate.
Bed Epithelium
What is the area of living skin that incompasses the lateral nail folds and the sides of the nail unit?
The Paronychium
What part of the natural nail unit protects the tips of the fingers and toes?
Nail Plate
What are the characteristics of a normal healthy nail?
Firm and Flexible, shiny, and slightly pink. Surface is smooth and unspotted with no splits or deep grooves. A healthy nail is translucent, with the nail beds pinkish or beige color showing through.
When does nail growth increase dramatically?
In the third trimester of pregnancy
The tough band of fibrous tissue that connects bones.
Ligaments
What is the lateral nail fold also known as?
The sidewall
What is the flap of skin that covers the matrix and sits between the nail plate and the Eponychium?
The proximal nail fold
What is the water content of a healthy nail?
15 to 25 percent
What nail unit parts are cuticle moisturizers designed for?
The Proximal Nail Fold/Eponychium, Lateral Sidewalls/Folds, and The Hyponychium
What helps guide the nail plate along the nail bed as it grows?
The bed epithelium
The lower the water content in the nail, _______________________.
the more rigid the nail.
Why should you treat the hyponychium with caution?
If the hyponychium is damaged, an infection under the nail plate is possible.
Is the growth of the nail plate affected by genetics?
The growth is not affected by genes
A normal nail plate grows forward form the _____ and extends over the tip of the finger.
Matrix
The _____, _____, and ______ of the matrix determine the thickness, width, and curvature of the plate.
Length, Width, and Curvature
What is the average rate of nail growth per month for adults?
1/10 to 1/8 inch
What time of year do nail plates grow the fastest?
The Summer
What is the portion of living tissue that supports the nail plate?
The Nail Bed
Which nail grows the slowest?
The thumbnail
Why are toenails thicker than fingernails?
Because the toenail matrix is longer than the fingernail matrix.
How long does it take for a toenail plates to be fully replaced?
9 to 12 months
What part of the nail unit can sweat secrete from?
The skin around the nail.
The _______ that nail cells are produced, the faster the plate will grow.
faster
What can you recommend to clients to help their nail grow thicker?
Nothing can make the nail plate grow thicker.
Why do nail growth rates accelerate during pregnancy?
Hormonal changes