Hair Theory Flashcards
Bundles called melanosomes are formed by:
Melanocytes
If the diameter of a female client’s ponytail has become smaller over time, it could indicate:
Androgenetic alopecia
Non-medical options for hair loss include:
wigs or toupées
Short, fine, non-pigmented hair found more abundantly on women is known as:
Vellus
Catagen, a brief transitional stage of hair growth, lasts for what amount of time?
Lasts only a few weeks
Eumelanin is the type of melanin that produces:
Brown.black hair
Gray hair is caused by:
reduced color pigment in the cortex layer of the hair
Hair color is darker during which stage of growth?
Anagen
Hair grows from a tube-like “pocket” called a root sheath or a(n):
Follicle
Hair that has been pulled out from the roots can grow back under which of the following circumstances?
the papilla has not been destroyed
Hair that is 90% cortex and 10% cuticle when compared to hair that is 40% cuticle would be considered to be more:
Elastic
How long does the telogen, or resting stage of hair growth, last?
3-4 months
Human hair, on the average, grows about:
1/2” (1.25 cm) per month
Keratinization is a process whereby cells do all of the following EXCEPT:
form keratin protein
Mitosis takes place in the area of the hair bulb called the:
Germinal matrix
People with lighter colored hair have melanin in the:
cortex
The active growing stage of hair lasts from:
2 to 6 years
The papilla supplies nourishment to the:
germinal matrix
The technical name for the hair of the head is known as:
Capilli
What does number 2 on the diagram represent?
102.12 p. 179
What is formed when sebum produced by the oil glands mixes with the body’s perspiration?
Acid mantle
Which of the following terms is another name for cell division?
Mitosis
A condition in which beads or nodes form on the hair shaft is called:
Monilethrix is a condition in which beads or nodes form on the hair shaft.
A disorder that refers to thick, crusty patches of red irritated scalp is known as:
psoriasis
Alopecia, or excessive hair loss, may be caused by any one of the following EXCEPT:
inflammatory disease of the scalp
An abnormal coverage of hair on areas of the body where normally only lanugo, or baby-fine hair appears, is a condition known as:
hypertrichosis
An infestation of head lice on the scalp is called:
pediculosis capitis
Baldness that occurs early in life, beginning as early as late adolescence is referred to as:
alopecia prematura
Excessive matting of the hair is referred to as:
plica polonica
Fragilitis crinium is the technical name for:
split ends
If the layers of the cuticle are very close together the hair has which type of porosity?
the hair has resistant porosity.
In androgenetic alopecia, a combination of heredity, hormones and age causes:
shrinking or miniaturization of certain scalp follicles
In men, male pattern baldness takes the shape of:
In men, male pattern baldness takes the shape of a horseshoe-shaped fringe.
Long, thick pigmented hair such as scalp and eyebrow hair is referred to as
terminal hair
Malassezia is a microscopic fungus that is the leading cause of:
dandruff
Red, watery vesicles or pus-filled areas caused by an itch mite burrowing under the skin are known as:
Scabies
The name given to grayness or whiteness of the hair is:
canities
The technical term for broken hair is:
abraded hair
What scalp disease might be present if prior to a service several dry, yellow, encrusted areas on the scalp are noticed along with a peculiar odor?
tinea favosa
Which of the following refers to the ability of hair to stretch and return to its original shape without breaking?
Elasticity
