Parts of the Hair
tube like depression/pocket in the skin that contains the hair root
hair follicle
long, coarse pigmented hair found on the scalp, legs, arms and bodies of male and female is called
terminal hair
small, involuntary muscle in the base of the hair follicle
arrector pilli muscle
the study of hair and its diseases
trichology
during the (blank) phase, new hair is produced because new cells are actively manufactured in the hair follicle
anagen
lowest part of the hair strand
hair bulb
technical term for ringworm
tinea
the ability of the hair to absorb moisture is called
porosity
strong, chemical bonds that join amino acids
peptide bonds
also known as resting phase of the hair follicle
telogen
2 parts of the mature strand of hair are
hair root & hair shaft
technical term for lice
pediculosis capitis
wet hair with normal elasticity will stretch up to (percent) of its original length and return with out breaking
50%
the major elements that make up human hair are Carbon, Oxygen, Hydrogen, and (blank) (blank)
nitrogen, sulfur
this phase cuts the hair off from its blood supply and from cells that produce new hair
catagen
outermost layer of the hair
cuticle
technical term for grey hair
canities
hair texture is classified as
coarse, medium, fine
a (blank) bond is a weak, physical side bond easily broken by water and heat
hydrogen
almost all the hair we have is in this phase
anagen
the medulla is composed of (shape) cells
round
list the different types of alopecia we learned (5 types)
areata, androgentic, postpardum, totalis, universalis
average growth of healthy scalp hair is
1/2 in per month
compared to hair with high porosity, chemical services performed on hair with low porosity require
more alkaline solutions
name all the phases of hair growth
anagen, catagen, telogen