Milady Chapter 11 // Cosmetology flashcards |

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Trichology

What is the scientific study of hair, its diseases, and care?

Hais Shaft and Hair Root

What are the two parts of a mature strand of human hair?

Follicle

The tube-like depression or pocket in the skin or scalp that contains the hair root is the ______.

Soles of the feet

Hair follicles are NOT found on the _____.

Arrector Pili

The _____ is a tiny, involuntary muscle in the base of the hair follicle.

Sebum

What is an oily substance secreted from the sebaceous glands?

an alkaline pH

For chemicals to penetrate a healthy cuticle hair layer, they must have ______.

Round

The medulla is composed of _____ cells.

Keratinization

The process whereby living cells mature and begin their journey up the hair shaft is ______.

carbon, oxygen, hydrogen, nitrogen, & sulfur

What are the five main elements that make up the chemical composition of human hair?

Peptide Bonds

What are the chemical bonds that hold together the amino acid molecules?

Pheomelanin

Which type of melanin provides natural colors ranging from red and ginger to yellow and blond tones?

Extremely straight hair

Asians tend to have ______

A detangling rinse

To help minimize tangles in extremely curly hair when washing, you should use ______.

Coarse, Medium, or Fine

Hair texture is classified as _______.

Hair Density

What is the measurement of individual hair strands on 1 square inch of the scalp?

more alkaline solutions

Compared to hair with high porosity, chemical series performed on hair with low porosity require ______.

50 percent

Wet hair with normal elasticity will stretch up to _____ of its original length.

with normalizing shampoo

Oily scalp and hair can be treated by properly washing it ______.

vellus

Which type of hair almost never has a medulla?

Anagen

What is the growth phase during which new hair is produced?

1/2 inch per month

What is the average growth of healthy scalp hair?

Canities

What is the technical term used to describe gray hair?

Hypertrichosis

What is a condition of abnormal hair growth on areas of the body?

Pityriasis

What is the medical term for dandruff?

amino acids

The body can produce 11 of the 20 ______ that make up hair.

one-third

Salt bonds account for about ______ of the hair's overall strength.

Years

The anagen phase generally lasts from three to five _____.

Faster

Scalp hair grows _____ on women than on men.

Catagen

The ______ phase signals the end of the growth phase.

Does not affect

Scalp massage _____ hair growth.

neither coarser nor more resistant

Compared to pigmented hair, gray hair is ______.

can be almost any shape

Cross-sections of hair _____.

less successful

Bald men are commonly perceived as _____.

40

By age 35, almost ____ percent of both men and women show some degree of hair loss.

men only

Finasteride is an oral prescription medication for hair loss that is meant for _____.

at or before birth

Congenital canities manifests ______.

dry scalp

Dandruff can easily be mistaken for ______.

fungus

Dandruff is believed to be caused by a ______.

tinea barbae

The most frequently encountered fungal infection resulting from hair services is ______.

itching

Tinea is characterized by ______.

Pediculosis Capitis

The infestation of the hair and scalp with head lice is called ______.

Larger

A carbuncle is similar to a furuncle, but is ______.

more fragile

Fine hair is _____ than coarse or medium hair.

stronger

Coarse hair is ______ than fine hair.

Hair cuticle

The _____ is the outermost layer of hair.

Sebaceous

The oil glands in the skin that are connected to the hair follicles are the _______ glands.

Hydrogen

A _____ bond is a physical bond easily broken by water or heat.

90

Hair is approximately _____ percent protein.

Alopecia Totalis

Total scalp hair loss is known as ______.

Hirsuties

Hypertrichosis is also known as ______.

Malassezia

What is the naturally occurring fungus that causes the symptoms of dandruff when it grows out of control?

Hair Bulb

The _____ is the lowest part of a hair strand.

Monilethrix

What is the technical term for beaded hair?

Scabies

What is a highly contagious skin disease caused by a parasite called a mite that burrows under the skin?

Helix

What is the term for the spiral shape of a coiled protein?

has no effect on hair growth

Shaving, clipping, and cutting the hair on the head ______.

Scutula

What are dry, sulfur-yellow, cup-like crusts on the scalp?

hair, skin, nails, & glands

What 5 things are a part of the integumentary system?

Terminal hair

What is the long, coarse, pigmented hair found on the scalp, legs, arms, and bodies of males and females?

Trichorrhexis Nodosa

What is the technical term for knotted hair?

Medulla

What is the innermost layer of the hair?

Whorl

Hair that forms in a circular pattern on the crown of the head.

Hair Root

The part of the hair located below the surface of the epidermis is the ______.

Cowlick

What is a tuft of hair that stands straight up?

Hair Porosity

What is the ability of the hair to absorb moisture?

Cortex

What is the middle layer of the hair?

Alopecia Areata

What is an autoimmune disorder that causes affected hair follicles to be mistakenly attacked by a person's own immune system?

Lanugo Hair

Vellus hair is also known as _____.

Tinea

What is the medical term for ringworm?

Alopecia

abnormal hair loss

Alopecia Universalis

Complete loss of body hair.

Androgenic Alopecia

"androgenetic alopecia" ; hair loss characterized by miniaturization of terminal hair that is converted to vellus hair; in men it's (male pattern baldness)

Carbuncle

Inflammation of the subcutaneous tissue caused by staphylococci; similar to a furuncle but larger.

Catagen Phase

The brief transition period between the growth and resting phases of a hair follicle. It signals the end of the growth phase.

Carbon, Oxygen, Hydrogen, Nitrogen, and Sulfur

Name the COHNS elements. (The 5 elements that make up human hair, skin, tissue, and nails.

Disulfide Bond

Strong chemical side bond that joins the sulfur atoms of two neighboring cysteine amino acids to create one cystine, which joins together two polypeptide strands like rungs on a ladder.

Fragilitas Crinium

What is the technical term for brittle hair?

Furuncle

Boil; acute, localized bacterial infection of the hair follicle that produces constant pain.

Hair Cuticle

Outermost layer of hair; consisting of a single, overlapping layer of transparent, scale-like cells that look like shingles on a roof.

Hair elasticity

Ability of the hair to stretch and return to its original length without breaking.

Hair Follicle

The tube-like depression or pocket in the skin or scalp that contains the hair root.

Hair Shaft

The portion of the hair that projects above the epidermis.

Hair Stream

Hair flowing in the same direction, resulting from follicles sloping in the same direction.

Hair Texture

Thickness or diameter of the individual hair strand.

Hydrogen Bond

A weak, physical, cross-link side bond that is easily broken by water or heat.

Hydrophilic

Easily absorbs moisture; in chemistry terms, capable of combining with or attracting water (water-loving)

Hydrophobic

Naturally resistant to being penetrated by moisture.

Hypertrichosis

"hirsuties" ; condition of abnormal growth of hair, characterized by the growth of terminal hair in areas of the body that normally grow only vellum hair.

Keratinization

Process by which newly formed cells in the hair bulb mature, fill with keratin, move upward, lose their nucleus, and die.

Ianthionine bonds

The bonds created when disulfide bonds are broken by hydroxide chemical hair relaxers after the relaxer is rinsed from the hair.

Peptide Bond

"end bond" ; chemical bond that joins amino acids to each other, end to end to form a polypeptide chain.

Pityriasis Capitis Simplex

What is the technical term for classic dandruff?

Pityriasis Steatoides

Severe case of dandruff characterized by an accumulation of greasy or waxy scales mixed with sebum, that stick to the scalp in crusts.

Postpartum Alopecia

Temporary hair loss experienced at the conclusion of a pregnancy.

Proteins

Long, coiled complex polypeptides made of amino acids.

Ringed Hair

Variety of canities characterized by alternating bands of gray and pigmented hair throughout the length of the hair strand.

Salt Bond

A weak, physical, cross-link side bond between adjacent polypeptide chains.

Side Bonds

Bonds that cross-link the polypeptide chains together and are responsible for the extreme strength and elasticity of human hair.

Telogen Phase

"resting phase" ; the final phase in their hair cycle that lasts until the fully grown hair is shed.

Terminal Hair

Long, coarse, pigmented hair found on the scalp, legs, arms and bodies of males and females.

Tinea Favosa

fungal infection characterized by dry, sulfur-yellow, cup-like crusts on the scalp called scutula.

Trichoptilosis

What is the technical term for split ends?

Wave Pattern

The shape of the hair strands; described as straight, wavy, curly, and extremely curly.

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