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Cross Section Of The Nail and anatomy

By: Morgan Bodge
by

e brice

on 18 July 2013

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Transcript of Cross Section Of The Nail and anatomy

Cross Section Of The Nail
Nail Structure
1) Free Edge: part of nail that extends past the edge of the finger and protects tips of fingers and toes
2) Nail Body
(plate):
visible nail area from the nail root to the free edge
3) Nail Wall:folds of skin on either side of the nail groove
4) Lunula: half-moon shape at the base of the nail, appears white due to reflection of light at the point where the nail matrix and nail bed meet
5) Eponychium: cuticle overlapping the lunula at the base of the nail
6) Cuticle:loose and pliable overlapping skin around the nail
7) Nail Matrix: active tissue that generates cells that harden as they move outward from root to nail
8) Nail Root: attached to the matrix at the base of the nail, under the skin and inside the mantle
9) Mantle: pocket-like structure that holds the root and matrix
10) Nail Bed: area of nail on which the nail body rests
11) Nail Grooves: tracks on either side of the nail in which the nail rests on as it grows
12) Perionychium: skin that touches, overlaps, and surrounds the nail
13) Hyponychium: skin located under the free edge
Nail Structure Continued
Parts Of The nail
Facts On The Nail
-
The nail plate is only a single part of the overall nail structure
-Each part of the structure is vital to nail growth and development
-Each finger or toenail can be divided into different major sections
-Each separate part cooperates with the others to form what is called the nail unit
-
The purpose of the nail wall is to protect the nail from bacteria and chemicals
-Guardian seals protect the nail bed and matrix from everyday bacteria from other people or the environment
Sections Of The Nail
More Facts On The Nail!
-
Nail plates grow about 20% faster in the summer
-Normally men's nail plates grow faster than women's, especially on the dominant hand
-
Nail plates grow fastest during pregnancy then the growth slows down after the baby is born
Fun Facts On Nails
-The longer the finger, the faster your nail grows
-
After an illness, your nail growth increases
-
Manicures, crash dieting or eating disorders can affect your nails
-
Your nail growth rate is affected by condition, hormone imbalance and aging
-Nail plates are dead cells and do not breathe
-
Nails don't sweat; the nail beds do not have sweat glands
-Nails grow an average rate of 0.1mm a day for (or 1cm in every 100 days)
-Seasons affect your nail growth; they grow longer in warm temperatures
Nail Myths/More Fun Facts
1) Cutting your nails after dark is bad luck
2)
Some mammals (like elephants) have 5 nails on their front legs and 4 nails on their back legs
3)
It is a myth that hair and nails will continue to grow after death this is an optical illusion
4)
Nail manicure is a very ancient activity; there is evidence from 4,000 years ago
5)
If you don't drink enough water, this is bad for your health but your nails become dry
6)
Male guitar players often leave the nails on their playing hand uncut and use them for playing as well...ew
The End :)
Full transcript