Milady - Chapter 11: Properties of the Hair & Scalp
hydrogen
A _____ bond is a weak, physical, cross-link side bond easily broken by water or heat.
larger
A carbuncle is similar to a furuncle but is _____.
hypertrichosis
A condition of abnormal growth of terminal hair in areas of the boy that normally grow only vellus hair is _____.
scabies
A highly contagious skin disease caused by a parasite called a mite that burrows under the skin is _____.
cowlick
A particular pattern of hair stream that is usually more noticeable on the front hairline in people with short, thick hair is a _____.
alopecia areata
An autoimmune disorder that causes the affected hair follicles to be mistakenly attacked by a person's own immune system is _____.
extremely straight
Asians tend to have _____ hair.
less successful
Bald men are commonly perceived as _____.
one third
Because there are so many of them, salt bonds count for about _____ of the hair's overall strength.
40
By age 35, almost _____ percent of both men and women show some degree of hair loss.
is stronger than fine hair
Coarse hair _____.
more alkaline solutions
Compared to hair with high porosity, chemical services performed on hair with low porosity require_____.
exactly the same
Compared to pigmented hair, gray hair is _____.
at or before birth
Congenial canities exists _____.
can be almost any shape
Cross-sections of hair _____.
fungus
Current research confirms that dandruff is the result of a _____.
dry scalp
Dandruff can easily be mistaken for _____.
scutula
Dry, sulfur-yellow, cupcake crusts on the scalp are called _____.
anagen
During the _____ phase, new hair is produced because new cells are actively manufactured in the hair follicle.
Catagen
During which phase does the follicle canal shrink and detach from the dermal papilla?
men only
Finasteride is an oral prescription medication for hair loss that is meant for _____.
more fragile
Fine hair is _____ than coarse or medium hair.
an alkaline pH
For chemicals to penetrate a healthy cuticle hair layer, they must have _____.
soles of the feet
Hair follicles are not found on the _____.
90
Hair is approximately _____ percent protein.
coarse, medium, or fine
Hair texture is classified as _____.
hirsuties
Hypertrichosis is also known as _____.
normalizing shampoo
Oily hair and scalp can be treated by properly washing with _____.
faster
Scalp hair grows _____ on women than on men.
does not increase
Scalp massage _____ hair growth.
has no effect on hair growth
Shaving, clipping, and cutting the hair on the head _____.
hair, skin, nails, and glands
The _____ are part of the integumentary system.
medulla
The _____ is the innermost layer of the hair and is composed of round cells.
hair bulb
The _____ is the lowest part of a hair strand.
hair cuticle
The _____ is the outermost layer of the hair.
arrestor pili muscle
The _____ is the small, involuted muscle in the base of the hair follicle.
Catagen
The _____ phase signals the end of the growth phase.
hair porosity
The ability of the hair to absorb moisture is called _____.
years
The anagen phase generally lasts from three to five _____.
1/2 uscg (1.25 centimeters) per month
The average growth of healthy scalp hair is _____.
sebum
The fatty or oily substance secreted by the sebaceous glands is _____
pediculosis capitis
The infestation of the hair and scalp with head lice is called _____.
nitrogen, and sulfur
The major elements that make up human hair are carbon, oxygen, hydrogen, _____.
hair density
The measurement of the number of individual hair strands on one square inch (2.5 square centimeters) of the scalp is _____.
round
The medulla is composed of _____ cells.
cortex
The middle layer of the hair is the ____.
malassezia
The naturally occurring fungus that causes the symptoms of dandruff when it grows out of control is _____.
sebaceous
The oil glands in the skin that are connected to the hair follicles are the _____ glands.
terminal hair
The one,coarse, pigmented hair found on the scalp, legs, arms, and bodies of males and females is called _____.
hair root
The part of the hair located below the surface of the epidermis is the _____.
trichology
The scientific study of hair, its diseases, and care is called _____.
peptide bonds
The strong, chemical bonds that join amino acids are called.
monilethrix
The technical term for beaded hair is _____.
pityriasis
The technical term for dandruff is _____.
trichorrhexis nodosa
The technical term for knotted hair is _____.
tinea
The technical term for ringworm is _____.
canities
The technical term used to describe gray hair is _____.
helix
The term for the spiral shape of a coded protein is _____.
hair follicle
The tube-like depression or pocket in the skin or scalp that contains the hair root is the _____.
hair root and hair shaft
The two parts of a mature strand of human hair are the _____.
itching
Tinea is characterized by _____, scales, and sometimes, painful circular lesions.
a detangling rinse
To help minimize tangles in extremely curly hair when shampooing, you should use _____.
alopecia totalis
Total scalp hair loss is known as _____.
lanugo hair
Vellus hair is also known as _____.
50 percent
Wet hair with normal elasticity will stretch up to _____ of its original length and return to that length without breaking.
a whorl
When hair leaves the follicles at an angle and forms patterns or streams on the head, it is called _____.
keratinization
When the living cells o her form ad begin their journey upward through the hair follicle, they mature in a process called _____.
Dermal Papila
Which of the five main structures of the hair root contain the blood and were supply that provides the nutrients needed for hair growth?
Vellus
Which type of hair almost never has a medulla?
Pheomelanin
Which type of melanin provides natural colors ranging from red and ginger to yellow and blond tones?