HAIR & SCALP
PROPERTIES
PROPERTIES
The 2 parts of human hair
What is the hair root and the hair shaft?
The component of hair that is defined by the thickness or diameter of the individual strand of hair
What is texture?
The three growth cycles of human hair?
What is anagen, catagen, and telogen?
An acute, localized bacterial infection of the hair follicle that produces constant pain
What is a furuncle?
The medical term used to describe dandruff
What is pityriasis?
The portion of the hair root structure that supplies nutrients so the hair can grow
What is the dermal papilla?
The measurement that describes the number of individual hair strands on 1 square inch of the scalp
What is density?
Temporary hair loss experienced at the end of pregnancy
What is postpartum alopecia?
A parasitic infection that causes itchiness and a bumpy rash with blisters on the scalp
What is scabies?
The technical term for brittle hair
What is fragilitas crinium?
The living portion of the hair that is defined by the structure in the skin or scalp that surround the hair root and anchors the hair in the scalp
What is the hair follicle?
This component of hair analysis that is tested by holding a strand of hair with one hand while sliding the other hands thumb and forefinger from the end of the strand to the scalp
What is porosity?
The phase of hair growth where the follicle canal shrinks and detaches from the dermal papilla
What is the catagen phase?
Hair disorder that causes terminal hair to grow on areas of a woman's body where terminal hair typically does not grow
What is hirsuties?
The technical term for beaded hair
What is monilethrix?
The three different types of side bonds that link chains of amino acids together
What are hydrogen, salt, and disulfide bonds?
What is a hair stream, cowlick, and whorl?
The complete loss of all body hair
What is alopecia universalis?
A severe type of dandruff characterized by an accumulation of greasy or waxy scalp scales mixed with sebum
What is pityriasis steatoides?
The technical term for split ends
What is trichoptilosis?
The major chemical elements that make human hair
What are the COHNS elements?
carbon/oxygen/hydrogen/nitrogen/sulfer
What is the sebacous gland?
Hair loss that caused by the immune system attacking the hair follicles
What is alopecia areata?
A scalp disorder characterized by dry, sulfur-yellow, cup-like crusts on the scalp
What is tinea favosa?
The technical term for hair that has not been pigmented since birth
What is congenital canities?