Milady ch. 11 trichology

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Carbon, Oxygen, Hydrogen, Nitrogen and Sulfer

5 main elements that make up chemical composition of human hair

Larger

A carbuncle is similar to a furncle but is

Electrolysis

A condition of abnormal hair growth on areas of the bodys

Scabies

A highly contagious skin disease caused by a parasite called a mute that burrows under the skin

Salt bonds

Account for about 1/3 of the hairs overall strength

Vellus

Almost never has a medulla

40 percent

By age 35 almost __ percent of both men and woman show some degree of hair loss

Peptide bonds

Chemical bonds that hold to

Scultula

Dry sulfur yellow cup like crusts on the scalp are called

Hydrogen bond

Easily broken by water or hear

A neutral ph

For chemicals to have a healthy cuticle hair the must have

Hirsuties

Hyptrichosis also known as

Hair bulb

Lowest part of a hair strand

Pityriasis

Medical term for dandruff

Pheomelanin

Melanin that provides natural colors ranging from red ginger to yellow and blond tones

Tinea Barbae

Most frequently encountered fungal infection resulting from hair services

Monilethrix

Technical term for beaded hair

Canities

Technical term for grey hair

Helix

Term for the spiral shape coiled protein is

3 to 5 years

The anagen phase generally lasts from

Amino acids

The body can produce 11 of the 20 ___ that make up the hair

Anagen

The growth phase during witch new hair is produced

Round

The medulla is composed of __ cells

Malassezia

The naturally occurring fungus that causes the symptoms of dandruff when it grows out of control is

Keratinization

The process whereby living cells mature and begin their journey up the hair shaft

Trichology

The scientific study of hair, it's diseases and care

Bulb

The tube like depression or pocket in the skin or scalp that contains the hair root

Hair root and follicle

The two parts of a mature strand of human hair

Itching

Tinea is characterized by

Medulla

Tiny involuntary muscle in the base of the hair follicle

Alopecia totalis

Total scalp hair loss is known as

50 percent

Wet hair with normal elasticity will stretch up to __ of its original length


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