Cosmo study guide

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Question		Answer
Matrix start learning		the area where the nail plate cells are formed
Natural nail start learning		is the hard protective plate composed mainly of keratin The same fibrous protein found in skin or hair. It is an appendage of the skin and is part of the integumentary system. also known as onyx
Nail plate start learning		is a hardened keratin plate that sits on and covers the nail bed. It is the most visavle and functional part of the nail unit
Free edge start learning		the part of the nail plate that extends over the tip of the finger or toe.
bed epithelium start learning		thin layer of tissue that attaches the nail llatr and the nail bed
eponychium start learning		living skin at the base if the natural bail plate that covers the matrix area
ligament start learning		tough band of fibrous tissue that connects the bones or holds an organ in place
Lunula start learning		Visible part of the matrix that extends from underneath the living skin it is the whiteish half moon shape at the base of the nail
Matrix start learning		Area where the nail plate cells are formed; this area is composed of matrix cells that produce the nail plate
Nail cuticle start learning		Dead colorless tissue attached to the natural nail plate
Sidewall start learning		The fold of skin overlapping the side of the nail Also known as lateral nail fold
Nail grooves start learning		slits or furrows on the sides of the side wall
Onychopahgy start learning		bitten nails nail biting
Onychorrhexis start learning		refers to split or brittle nails that have a series of lenghwise ridges giving a rough appearance to the surface of the nail plate
Plicatured nail start learning		is a type of highly curved nail plate usually caused by injury to the matrix, but ut may be inherited folded nail
Ridges start learning		vertical lines running down the length ov the natural nail plate that are caused by uneven growth of nails usually the result of normal aging

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