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Structure of Hair
Chemical Composition
Hair Analysis
Hair Growth/Loss
Disorders
100
Name the five 5 structures of the hair root.
What is follicle, hairbulb, dermal papilla, arrector pili, and sebaceous glands.
100
Name the main elements that make up human hair.
What is carbon, oxygen, hydrogen, nitrogen, and sulfur. (COHNS)
100
Name the four most important factors to consider in hair analysis.
What is texture, porosity, elasticity, and density.
100
Short, fine, and downy hair.
What is vellus or lanugo hair.
100

A condition of abnormal growth of hair. Ex. A mustache on women.

What is Hypertrichosis/ Hirsuties.

200
What is the oily substance which lubricates the hair and skin?
What is sebum.
200
Proteins are made of long chains of _________ that are linked together end to end like pop beads.
What is Amino Acids.
200
Texture of hair that is most common
What is medium hair.
200
Three stages of the growth cycle in order
What is anagen, catagen, and telogen.
200
A disease that is characterized by brittleness and the formation of nodular swellings along the hair shaft.
What is Trichorrhexis nodosa.
300
Name the structures of the hair shaft in order from the outermost layer of the hair to the innermost layer.
What is cuticle, cortex, and medulla.
300

A chemical side bond that is broken by permanent waves.

What is disulfide bond.

300
How can hair density be classified?
What is the number of individual hair strand on 1 square inch of scalp.
300
During what phase does the follicle canal shrink and detach from the dermal papilla?
What is catagen phase.
300
Technical term for split ends.
What is trichoptilosis.
400
Describe the dermal papilla.
What is a small, cone-shaped area located at the base of the hair follicle that fits into the hair bulb.
400

The spiral shape of a coiled protein is called a

What is a helix

400
What is the hair stream?
What is hair flowing in the same direction, resulting from follicles sloping in the same direction.
400
Sudden falling out of hair in round patches or baldness in spots is...
What is apolecia areata.
400
Two types of dandruff.
What is pityriasis captis simplex (can be treated in salon) and pityriasis steatoides (can't be treated in a salon).
500
What part of the hair shaft do not all people have, and why?
What is common for very fine and naturally blond hair to entirely lack a medulla. Only coarse hair contains a medulla.
500
What describes the shape of the hair strand, and is described as staright, wavy, curly, or extremely curly.
What is wave pattern.
500
What should be avoided if you have dry hair and scalp?
What is shampooing with the use of strong soaps, detergents, or products with a high alcohol content.
500
Two products of hair treatments that are said to counter hair loss.
What is Minoxidil and Finasteride.
500
What is the difference of furuncle and carbuncle?
Furuncle is an acute, localized bacterial infection of the hair follicle that produces constant pain. Carbuncle is an inflammation of the subcutaneous tissue caused by staphlycocci.