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.