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The technical term for the study of hair is
What is trichology
Normal dry hair is capable of being stretched about how much of its length
What is 20%
What helps protect the hair and skin from becoming too dry
What is sebum
The ability of the hair to absorb moisture, liquids or chemicals is known as
Cilia is the technical term for
What is eyelash hair
The hair growth stage when all cell division stops is
What is the catagen stage
The active growing stage of hair
What is anagen stage?
If the layers of the cuticle are very close together the hair has which type of porosity
What is resistant
An abraded cuticle can result from which actions
Brushing, clipping hair back tightly, manipulating the hair when wet
Three factors that affect the behavior of hair are heredity, products or appliances and
What is environment
The lips, soles of feet, palms of the hands and eyelids do not have
What is hair?
The temporary hair loss occurring at the conclusion of pregnancy is
What is postpartum alopecia
Mitosis takes place in the area of the hair bulb called
What is the germinal matrix
Tinea is the medical term for
What is ringworm
If the scalp appears abnormal at all, a client should be who
A dermatologist
Name a few factors that affect hair growth
What is disease, medication, and lack of vitamins
Gray hair is sometimes referred to as
What is mottled hair
Oily flakes combined with sebum, which stick to the scalp in clusters, are known as
What is greasy dandruff
Products claiming hair regrowth or hair loss prevention cannot be marketed without which agency's prior review and approval
What is FDA
The resting stage of hair growth when the hair bulb has no attached root sheath is referred to as
What is the telogen stage
Human hair on average grows about how much per month
What is 1/2 inch a month
What is the outer covering of the hair shaft made up of overlapping layers of transparent scales?
What is the cuticle
The muscle that causes the hair to stand on end when a person is scared or known is
What is the arrector pili muscle
What is the natural flow or wave pattern of hair determined by
What is the angle of the follicle
The acid mantle maintains the natural pH of hair and skin and protects what
A disorder that refers to a chronic scalp condition with excessive flaking, which accumulates on the scalp or falls to the shoulders is known as
What is pityriasis
What is the average amount of daily hair loss
40 to 100 strands
DOUBLE JEOPARDY!!!!!!!!
Malassezia is a microscopic fungus that is the leading cause of
What is dandruff
Which procedural step is generally used to determine if hair loss may be identified as androgenetic alopecia
What is ask questions about family history
The hair follicle that produces tightly curled hair is typically shaped how
What is elliptical
Hair that is 90% cortex and 10% cuticle when compared to hair that is 40% cuticle would be considered to be more
What is elastic?
What is the total lack of pigmentation in the hair and skin called
What is albinism
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Hair color is influenced by the amount, size, and distribution of
Eumelanin and Pheomelanin
What are the 3 main purposes of hair
Fragilitis crinium is the technical term for
What is spilt ends
The loss of pigment in the hair as a person ages is called
What is acquired canities
A condition in which beads or nodes form on the hair shaft is called
What is monilethrix
Dry flakes attached to the scalp or on the hair which can appear translucent are called
What is pityriasis capitis simplex?
Excessive matting of the hair is referred to as
What is plica polonic?
Short, fine, non pigmented hair found more abundantly on women is known as
What is vellus
The degree of coarseness or fineness of the hair fiber is referred to as
Each hair strand has about how many layers of cuticle scales
What is 7 to 12
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What is the most common hair color
What is Black
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Which season does hair grow quickest in and why?
Summer, Vitamin D
Keratinization is a process whereby cells do what?
dry out, change shape, and form keratin protein