Milady ch. 11 trichology
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
