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State Board Exam
AD Cervera
Flashcards by AD Cervera, updated more than 1 year ago
AD Cervera
Created by AD Cervera about 2 years ago
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Question Answer
Dermal Papilla small, cone-shaped elevations at the base of the hair follicles.
Trichology the study of hair.
Hair Cuticle the outermost layer of the hair
Cortex the middle layer of the hair
Medulla the innermost layer of the hair and is composed of round cells.
Pityriasis the technical term for dandruff, which is characterized by the excessive production and accumulation of skin cells
Malassezia a naturally occurring fungus that is present on all human skin but causes the symptoms of dandruff when it grows out of control
Tinea the technical term for ringworm
Pediculosis capitis is the infestation of the hair and scalp with head lice
Furuncle is the technical term for a boil, an acute, localized bacterial infection of the hair follicle that produces constant pain
Carbuncle is an inflammation of the subcutaneous tissue caused by staphylococci
Helix The spiral shape of a coiled protein
keratinization Process by which newly formed cells in the hair bulb mature, fill with keratin, move upward, lose their nucleus, and die
Hydrogen Bonds A weak, physical, cross-link side bond that is easily broken by water or heat.
Disulfide Bonds Strong chemical side bond that joins the sulfur atoms of two neighboring cysteine amino acids to create one cystine, which joins together two polypeptide strands like rungs on a ladder
Lanthionine Bonds The bonds created when disulfide bonds are broken by hydroxide chemical hair relaxers after the relaxer is rinsed from the hair.
Melanin The tiny grains of pigment in the cortex that give natural color to the hair.
Vellus Hair short, fine, unpigmented, and downy hair that appears on the body, with the exception of the palms of the hands and the soles of the feet.
Terminal Hair Long, coarse, pigmented hair found on the scalp, legs, arms, and bodies of males and females.
Anagen phase during which new hair is produced.
Catagen The brief transition period between the growth and resting phases of a hair follicle. It signals the end of the growth phase.
Telogen the final phase in the hair cycle that lasts until the fully grown hair is shed.
Trichoptilosis Technical term for split ends.
Canities Technical term for gray hair; results from the loss of the hair’s natural melanin pigment.
Hypertrichosis condition of abnormal growth of hair, characterized by the growth of terminal hair in areas of the body that normally grow only vellus hair.
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