Chapter 11 Properties Of The Hair And Scalp Flashcards
What is short, fine, unpigmented, and downy hair that appears on the body
Vellus Hair
Which type of hair almost never has a medulla
Vellus Hair
Women normally retain ( ) percent more vellus hair than men
55
which hair type helps with the evaporation of perspiration
vellus hair
What is the long coarse pigmented hair found on the scalp and body?
Terminal hair
the average growth of health scalp hair is about…?
1/2 inch per month
scalp hair grows rapidly between the ages of 15 and 30 but slows down sharply after the age of…?
50
Which hair phase generally lasts from 3-5 years but can last as long as 10?
Anagen
less than ( ) percent of scalp hair is in the catagen phase at any time
1
which phase lasts approximately 3-6 months?
Telogen
I’m average the entire growth cycle repeats it’s self every….?
4-5 years
abnormal hair loss is called…?
Alopecia
What is hair loss that is characterized by miniaturization of terminal hair that is converted into vellus hair?
Androgenic Alopecia
almost ( ) percent of men and women show some degree of hair loss
40
in men, androgenic alopecia is called…?
male pattern baldness
What is an autoimmune disorder that causes the affected hair follicles to be mistakenly attacked by a person’s own immune system
Alopecia Areata
Alopecia Areata usually begins with one or more small round smooth bald patches on the scalp and can progress to total scalp hair loss known as…?
Alopecia Totalis
complete body hair loss is know as…?
Alopecia Universalis
Alopecia Areata can occur in anyone and it most often begins in…?
childhood
hair loss experienced at the end of pregnancy is known as…?
postpartum alopecia
During pregnancy, there isn’t much hair loss at first but towards the end there can be excessive shedding that sometimes lasts up to ( ) months
12
Generally how long after pregnancy will the hair return to normal
One year
which two products have been proven to stimulate hair growth?
minoxidil and finasteride
( ) is available for both men and women, comes in two different strengths, and is known to not have any negative side effects.
Minoxidil
( ) is for men only! side effects include weight gain and loss of sexual function, women should not touch it because it can potentially cause birth defects.
finasteride
who specializes in nonsurgical hair replacement?
Cosmetologists
gray hair is aka…?
Canities
What are the two types of canities
congenital and acquired
( ) canities exist at or before birth
congenital
( ) canities developed with age and is the result of genetics
acquired
What is characterized by alternating bands of gray and pigmented hair throughout the length of the hair strand
Ringed hair
What is a condition of abnormal hair growth characterized by terminal hair growing where vellus hair normally would.
hypertrichosis
what is the technical term for split ends?
trichoptilosis
What is characterized by brittleness and the forming of nodular swelling along the hair shaft
trichorrhexis nodosa
What is the technical term for beaded hair?
monilethrix
What is the technical term for brittle hair?
fragilitas crinium
the average person sheds about ( ) lbs of skin each year
9
What is the technical term for dandruff
pityriasis
What fungus cases Dandruff?
Malassezia
although good hygiene and sanitation are important, dandruff is not…
contagious
there are ( ) types of dandruff
2
aka classic dandruff, what is characterized by scalp irritation, large flakes, and itchy scalp
pityriasis capitis simplex
What is the more severe case of dandruff characterized by an accumulation of greasy or waxy scales mixed with sebum that stick to the scalp in crusts.
pityriasis steatoides
when pityriasis steatoides is accompanied by redness and inflammation it is called…?
Seborrheic Dermatitis
aka ringworm, what is characterized by itching, scales, and sometimes painful circular lesions
Tinea
tinea is ( ), not parasitic
fungal
all forms of tinea are…?
contagious
aka ringworm of the scalp, ( ) is characterized by red papules, or spots, at the opening of the hair follicle
tinea capitis
What is characterized by dry, sulfur yellow, cup-like crusts on the scalp called scutula
Tinea Favosa
( ) is a highly contagious skin disease caused by a parasite called a mite that burrows under the skin
scabies
who should you refer someone with scabies too?
a physician
aka headlice
pediculosis capitis
aka Boil, what is an acute, localized bacterial infection of the hair follicle that produces constant pain
furuncle
What is an inflammation of the subcutaneous tissue caused by staphylococci
carbuncle
What should every salon service start with?
hair and scalp analysis
( ) is performed by observation using the senses of sight, touch, sound, and smell
hair analysis
( ) hair texture has the largest diameter
coarse
( ) is the most common texture and is the standard to which hair is compared
medium
( ) texture is smaller and more fragile. it is also more susceptible to damage from chemical services.
fine
hair density can be classified as.. ?
low, medium, or high
the average hair density is about ( ) hairs per square inch
2200
the average head of hair contains about ( ) individual hair strands
100,000
porous hair has a raised cuticle later that easily absorbs moisture and is called
hydrophilic
hair with average porosity is considered to be…?
normal hair
hair with low porosity is considered…?
resistant
chemical services performed on hair with low porosity require a more ( ) solution
alkaline
( ) raise the cuticle and permit uniform saturation and processing on resistant hair
alkaline solutions
( ) hair is damaged, dry, fragile, and brittle
overly porous
wet hair will stretch up to ( ) percent of its original length
50
dry hair will stretch up to ( ) percent of its original length
20
two streams flowing in opposite directions from a.. ?
natural part
dry hair and scalp should be treated with products that contain moisturizers and…?
emolients
What is caused by improper shampooing or overactive sebaceous glands
oily hair and scalp
pubic/ armpit
androgenic
head
capili
eyelash
cilia
eyebrows
super cilia
Facial hair
barbare
keeps fetus warm
Lanugo
