Trichology

Trichology

The technical name for the study of hair is ______.

Primitive hair germ

The cluster of cells in the epidermis from which the hair follicle forms is called the _____.

Wavy or straight hair

The root sheath of hair is typically oval or round in: ______.

Hair bulb

Only the cells of the _____ are alive. The hair fiber or strand itself is not alive.

primitive hair germ

______ needs nourishment to grow into a fully developed hair follicle.

Adornment, protection from cold, protection from injury

What are some of the main purposes of hair?

Sebaceous gland

What produces oil and sends it up through the hair follicles to the surface of the skin?

Germinal matrix

Which section of the hair structure is the area where mitosis takes place?

Cuticle

The outer covering of the hair is called_____?

Perspiration

What does sebum mix with to form the acid mantle?

Cortex

What layer of the of the hair fiber gives the hair it's pigment and elasticity?

Medulla

Which layer of hair may be absent in fine or very fine hair?

Cortex

The helix or coil shape of What part of the hair gives the hair the ability to stretch?

Telogen

Hair falls out during which stage of growth?

Anagen

On average what stage of hair growth last from 2 to 6 years?

Disease, lack of vitamins, and medication

What are some factors that affect hair growth?

Heredity, environment and products or appliances used

What factors influence the behavior of hair?

Hairdryers, perms, shampoo

What affects the structural organization of hair?

Harder

How is the protein in the cuticle different than the protein in the cortex?

May be up to 40% cuticle

Describe fine hair.

Melanocytes

Describe bundles of the pigment protein complex called melanosomes.

Eumelanin

Melanin and brown/black hair is called?

Genes

The amount and type of melanin produce determined by?

Cortex only

People with lighter colored hair have Melanin in the?

Red hair

A high concentration of pheomelanin will result in?

Texture

The degree of coarseness or fineness of the hair fiber is referred to as?

Density

What condition is determined by the number of active hair follicles per square inch of the scalp?

Porosity

The ability of the hair to absorb moisture, liquids, or chemicals is known as?

Elasticity

The ability of hair to stretch and return to its original shape without breaking it called?

Resistant

Which type of porosity describes hair that is able to absorb the least amount of Moisture, usually due to the closeness of the cuticle layer?

Extreme porosity

Hair damaged due to chemical services or environment is said to have?

One fifth

Normal dry here is capable of being stretched to what fraction of its length?

40% to 50%

Wet hair is able to be stretched to what percent of its length?

Cuticle

Split hair ends start as cracks in the?

Split ends

Fragilitis crinium is the technical name for?

Brushing, clipping hair that tightly, manipulating the hair when wet

And abraded cuticle can result from all of the following;

Pilica Polonica

A term applied to matting of the hair?

Trichorrhexis nodosa

This hair condition may be caused by an inherited defect in the hairs keratin protein structure:

Canities

Grayness or whiteness of hair is called?

Hypertrichosis

An abnormal coverage of hair on areas of the body where normally only lanugo or baby fine hair is a condition known as?

Monilethrix

A condition in which beads or nodes form on the shaft is called?

Ringed hair

A condition in which alternating bands of gray and dark hair exist is called?

Client preference, location of the hair and amount of hair to be removed

Removal method used for hypertrichosis range from tweezing to electrolysis depending on all of the following:

1000

The average head contains how many strands of hair person or end of service?

Red

People with what color hair on the average have the fewest hair strands?

Blonde

People with what color hair on the average of the most hair strand?

Pediculosis capitis

The medical term for head lice is?

Pitryiasis

The medical term for a chronic condition with excess flaking, which accumulate on the scalp or falls to the shoulders is a disorder known as?

Pitryiasis steatoides

The medical term for Greasy or waxy dandruff is?

Lanugo

What is the term applied to the baby fine hair that is shed shortly after birth?

Alopecia

The term use for excessive hair loss is known as?

40 to 100 strands

The average daily hair loss is?

Terminal

Long thick, pigmented hair like scalp and Eyebrow hair is referred to as?

Androgenetic alopecia

The most common form of hair loss and both men and women is?

The shrinking of scalp follicles

Androgenetic alopecia, a combination of heredity, hormones and age cause?

Fungal infection bacterial infection inflammatory disease of the scalp

Alopecia or excessive hair loss may be caused by the following:

Pattern and density of the clients hair

Hair loss identification systems identify:

Traction alopecia

Hair loss caused by excessive stretching is called?

FDA

Products claiming hair regrowth or hair loss prevention cannot be marketed without with agencies review and approval?

Alopecia areata

Sudden hair loss in round or irregular patches without the display of an inflamed Scalp is referred to as:

Postpartum alopecia

Temporary hair loss that occurs only in women:

Telogen effluvium

Premature shedding of the here and resting phase is called:

Shampooing

Cleansing the scalp and hair by removing dirt oils and product buildup is the purpose of:

Refer a client to a physician

What should be done if a client has an infectious disease or disorder of the scalp?

Massage

What term describes the scientific method of manipulating the body by rubbing pinching tapping needing or stroking with the hands fingers or an instrument?

Safety, comfort, protection

When dealing with the client and salon professional is responsible for?

Plastic or waterproof cape

What type of Cape is generally used for shampooing wet hair sculpting and designing and chemical services?

Shampoos with high pH

What kind of shampoos will make hair dry and brittle?

Hard

What type of water contains minerals and does not allow shampoo to lather freely?

Removing tangles

Always start at the bottom of the tangled area when_____?

Blood circulation

Scalp massage involves manipulations performed on the scalp to relax the muscles and stimulate;

Effleurage

What kind of massage uses light gliding strokes are circular motions made with the palms of the hands our path of the fingertips?

Petrissage

What kind of massages is heavy kneading and rolling of the muscles?

Tapotement

Light tapping or slapping massage movements are known as:

Petrissage

The most important manipulation that stimulates the sebaceous glands is known as:

All-purpose

What type of shampoos Cleanse the hair without correcting any special conditions?

Clarifying

What type of shampoos are used to remove residue such as product buildup?

Acid balanced

What type of shampoos are especially good for cleansing light and color treated hair or dry brittle hair?

Acid balanced

What type of rinse is used after a color service to prevent the color from fading?

Normalizing

What type of conditioner help close the cuticle after an alkaline chemical service?

Relaxing perming or coloring healthy hair

Avoid giving a scalp massage prior to

Aromatherapy

What term is used to describe the combination of the sense of smell and the use of plant extracts and they're healing abilities?

Medulla, cortex, cuticle

What are three major layers of hair?

Protein

Hair is primarily made up of?

Heredity, environment, products and appliances

What three factors dictate why everyone's hair is so different?

Melanin

What determines the amount, size, and distribution of the natural color of the hair?

Eumelanin and pheomelanin

Two types of melanin that create large variety of hair colors are:

Abraded hair, split ends, matting, nodules, Canities, Hypertrichosis and Monilethrix

List some observations during the professional analysis of clients hair.

Prematura, areata, Telogen effluvium and traction/traumatic alopecia

List some other types of alopecia other than the common Androgenetic alopecia.