Nail disorders and diseases
depressions running across the nail plate's width due to a slowing production of matrix cells
Beau's lines
Hair is made up of ___% Carbon
51
Also known as the growth phase; hair phase during which new hair is produced
Anagen
monilethrix
technical term for nails of the fingers or toes
onyx
noticeably thin, white nail plate that is more flexible than usual; usually caused by poor diet, heredity, internal disease, medication, or overfilling with an abrasive
eggshell nail
Hair is made up of____% oxygen
21
cortex
variety of canities characterized by alternating bands of gray and pigmented hair throughout the length of the hair strand.
ringed hair
collectively; the nail bed (or sterile matrix), nail fold, eponychium, paronychium, and hyponychium
perionychium
damaged nail around the nail platen(often to the eponychium) becomes split or torn
hangnail
Hair is made up of ___% hydrogen
6
consists of brown and black pimento and is the predominant pigment in black and brunette hair
eumelanin
dry, sulfur-yellow crusts on the scalp in tinea favosa or tinea favus; has distinctive color
scutula
slightly thickened layer of skin that lies between the fingertip and free edge of the nail plate, forming a protective barrier that prevents microorganisms from invading and infecting the nail bed
hyponychium
whitish discoloration found inside the nail plate, usually caused by injury to the nail matrix
leukonychia
Hair is made up of___% nitrogen
17
long chain of amino acids linked by peptide bonds
polypeptide chain
what is the technical term for split ends
trichoptilosis
all parts of the finger from the tip to the first knuckle; technically referred to as the onyx and is composed mainly of keratin
natural nail unit
nail surface pitting, roughness, onycholysis, and bed discolorations randomly or evenly spaced; nail plate may appear as if it has been filed with coarse abrasive, or the free edge may be ragged, or both.
nail psoriasis
Hair is made up of___% Sulfur
5
also known as resting phase; the final phase in the hair growth cycle that lasts until the fully grown hair is shed.
telogen phase
knotted hair; characterized by brittleness and the formation of nodular swellings along the hair shaft
trichorrhexis nodosa
nonliving colorless tissue attached to the nail plate
cuticle