Bonds
Diseases
Hair Shaft
Hair Analysis
Other Stuff...
100
A weak temporary bond that is easily broken by heat and water:
What is hydrogen bond
100
The condition of abnormal hair growth of terminal hair
What is hypertrichosis.
100
The hair shaft that emerges from the scalp is nonliving and composed of:
What is keratin
100
The ability of the hair to absorb water
What is porosity
100
The average growth of healthy scalp hair in a month:
What is 1/2" per month
200
A temporary side bond between two adjacent polypeptide chains that is broken by changes in pH.
What is Salt Bonds
200
An acute localized infection of the hair follicle that produces constant pain:
What is a furuncle
200
Name the 3 phases of growth:
What is Anagen, Catagen and Telogen
200
The ability of the hair to stretch and return to its original length without breaking
What is hair elasticity
200
The resting phase of the hair cycle:
What is telogen
300
The unit of structure that builds protein and are linked end-to-end like a string of pearls
What is Peptide Bonds
300
A highly contagous skin disease caused by a parasite:
What is scabies
300
The 3 main layers of the hair shaft:
What is Cuticle, Cortex and Medulla
300
The number of individual hair strands in one square inch
What is hair density
300
Melanin that creates black and brown hair color:
What is Eumelanin.
400
Permanent Waving and hair relaxers change the shape of the hair by chemically altering the hairs:
What is Disulfide Bonds
400
An infestation of the hair and scalp with head lice
What is pediculosis capitis
400
This layer consists of transparent scale like cells that look like shingles on a roof:
What is Cuticle layer
400
The thickness or diameter of an individual hair:
What is Hair texture.
400
The melanin that creates red and yellow hair colors:
What is Pheomelanin
500
Hydroxide Chemical Relaxers break disulfide bonds and convert them to:
What is Lanthionine Bonds
500
Knotted hair characterized by brittleness and the formation of nodular swellings along the hair shaft:
What is trichorrhexis nodosa
500
The fives elements that make up human hair, skin, tissue, and Nails:
What is COHNS elements- Carbon, Oxygen, Hydrogen, Nitrogen and Sulfur
500
What are the four main factors of hair analysis?
What is Density, Texture, Elasticity and Porosity
500
The scientific study of hair, and its diseases and care:
What is Trichology
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