chemistry1
disorders
growth phases
hair structure
mystery questions
100
In order for chemicals to penetrate the cuticle layer and reach the cortex, color and other chemical treatments must have this type of pH
What is alkaline
100
alopecia is the technical term for any kind of abnormal what
What is hair loss
100
this is a tuft of hair that stands straight up
What is a cowlick
100
this is another word for protein
What is karatin
100
fine medium and coarse refer to the hairs diameter or its this
What is texture
200
the elements in hair skin and nails are carbon, oxygen, sulfer, hydrogen, and this element
What is nitrogen
200
Pityriasis is the technical term for this
What is dandruff
200
this is the average growth rate of hair per month
What is 1/2 inch
200
this muscle causes goosebumps
What is arrector pili muscle
200
the hairs ability to absorb water is also known as its what
What is hair porosity
300
hydrogen, salt, and disulfide are all examples of what type of bond
What is side
300
Pediculosis capitis and scabies are both forms of this
What is an animal parasite
300
during this phase of growth the hair bulb disappears
What is the catagen phase
300
the hair shaft is made of three main layers known as the medula the cuticle and this
What is cortex
300
wet hair with normal elasticity can strech this far and return to its original lengh
What is 50 % of its length
400
this is the strongest chemical bond in the cortex
What is peptide or end bonds
400
sucosis vulgaris folliculitis and pseudofolliculitis barbae are staphyloccoccal infections involving this
What is the hair follicles
400
at any given time 90 percent of scalp hair is in this phase
What is anagen
400
this portion of the hair is enclosed in within the follicle
What is the hair root
400
the hairs natural tendancy to flow to one side that occurs because of the angle of the follicle creates this
What is a hair stream
500
the atoms of neighboring cysteine amino acids that are joined toghther by disulfide bonds are the atoms of this element
What is sulfer
500
this is a fungal infection that occurs chiefly over the bearded area
What is tinea sycosis
500
this is short fine hair found nearly all over your body
What is vellus or lanugo hair
500
this supplies nutrients and oxygen to the tissue that lines the hair follicle
What is the dermal papilla
500
the cortex accounts for this much of the hairs weight
What is 90%
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