Properties of Hair + Scalp Flashcards
Name the 2 parts of a strand of hair
hair root and hair shaft
The hair root is below or above the epidermis
below
the hair shaft is below or above the epidermis
above
what percent protein is hair
90%
What is the process in which newly formed cells in a hair bulb mature
keratinization
name the 3 growth phases of hair
anagen - growth phase; 3-5 years
catagen - transition phase; follicle canal shrinks and detaches
telogen - resting, lasts until hair is shed
Male pattern baldness
androgenic alopecia
minoxidil vs finasteride
minoxidil - topical
finasteride - oral prescription for men only
gray hair is also known as
canities
Dandruff caused by malassezia fungus
pityriasis
ringworm; causes itching, scales, painful circular marks
tinea
ringworm of scalp; red papules and spots at opening of follicle
tinea capitis
dry sulfur yellow cuplike crusts on scalp
tinea favosa
infestation of lice
pediculosis capitis
furuncle vs carbuncle
furuncle - smaller; boil/bacterial infection of follicle
carbuncle - larger; inflammation of subcutaneous tissue caused by staph