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Nails
Terminology
19
Cosmetology
Not Applicable
08/24/2011

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Term
ONYCHORRHEXIS
Definition
Brittle nails with split along the free edge & run lengthwise causing weakness or further breaks within the nails.
Term
PERIONYCHIUM
Definition
The excessive skin that overlaps the sides of the nail plates.
Term
ONYCHOPHAGY
Definition
Habitual nail biting creating very short nails with irregular edges
Term
LUNULA
Definition
Located at the base of the nail plate and is considered a part of the matrix.

Aka: "The half-moon"
Term
INTEGUMENTARY SYSTEM
Definition
A branch of anatomy that deals with the skin and its associated structures including the nails, hair, sweat and oil glands.
Term
FREE EDGE
Definition
The part of the nail plate not attached to the skin, and can extend beyond the finger tip.
Term
CUTICLE
Definition
The small portion of epidermis or skin extending over and resting upon the base of the nail plate.
Term
ATHLETE'S FOOT
Definition
A fungual infection between the toes which can seperate toe nails.

AKA: "Tinea"
Term
ALLERGIES
Definition
Occur when the immune system overreacts to normally harmless substances.
Term
NAIL BED
Definition
A portion of the skin to which the nail plate is attached and rests upon.

Highly sensitive because it contains blood vessels, etc.
Term
NAIL ROOT
Definition
Portion of nail plate hidden under a fold of skin (mantle) at the base of the nail plate.
Term
HEALTHY NAIL
Definition
Transulcent, slightly pink, smooth, curved, without ridges or wavy lines, and free from disease.
Term
NAIL PLATE
Definition
Composed of 100 layers of nail cells. Is translucent, and the most noticeable part of the nail.

AKA: "Nail Body"
Term
HYPONYCHIUM
Definition
Layer of skin cells growing on top of the finger tips and remains attached to the underside of the free edge.
Term
MANTLE
Definition
pocket-like fold of skin that holds the root and the matrix.
Term
NAIL GROOVES
Definition
Tracks on each side of the nail plate along which moves as its growing.
Term
MATRIX
Definition
Made of light blue to white specialized cells. Sixe and shape determines the shickness and shape of natural nail. Ligaments hold the matrix and nail bed onto the underlying bone.
Term
EPITHELIUM
Definition
Thin layer of skin cells between the nail bed and the nail plate.
Term
RING WORM ****APPEARS ON STATE BOARD EXAM MANY TIMES
Definition
CONTAGIOUS DISEASE CAUSED BY A FUNGUS.
AKA: "TINEA"

CHARACTERIZED: A RING THAT IS RED
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