Hair Structure, Growth, and Pigmentation

microbiology test 2 Question Melanin is found mainly in which part of the hair. The layer of the hair consisting of unique protein structures that give the hair most of its pigment and strength (elastically) is called the what helps protect the hair and skin from becoming too dry how long does the telogen, or resting stage of hair growth, last? the technical term for the study of hair is called the hair follicle term for the study of hair is called what determines the shape of the hair shaft as it grows? hair color is darker during which stage of growth what is the natural flow or wave pattern of hair determined by gray hair is caused by the central of the hair shaft sometimes missing in fine or very fine hair is the three factors that affect the behavior of hair are heredity, products or appliances and the two primary parts of hair are the hair fiber and the the active growing stage of hair last from hair that has been pulled out from the roots can grow back under what circumstance stimulation of the onset of the telogen stage or causing the production of abnormal, brittle hairs can be caused by what term identifies the outer covering of the hair shaft made up of overlapping layers of transparent scales the follicle in straight hair is typically the hair bulb itself is nearly doubled back over the follicle in a growth shape resembling a golf club in what hair color is at the greatest risk for sun damage and can turn yellow from too much exposure gray hair is sometimes referred to as if the amount of pheomelanin is very concentrated and near the cuticle, the hair color will appear more mitosis takes place in the area of the hair bulb called the hair that is 90% cortex and 10% cuticle when compared to hair that is 40% cuticle would be considered to be more what large hair structure is located at the base of the hair follicle what is the total lack of pigmentation in the hair and skin called bundles called melanosomes are formed by hair grows from a tube-like "pocket" called a root sheath or a the three major layers of the hair are the medulla, cortex, and what is formed when sebum produced by the oil glands mixes with the bodys perspiration cilia is the technical term for catagen, a brief transitional stage of hair growth, lasts for what amount of time what term is another name for cell division the lips, soles of the feet, palms of the hands and eyelids do not have what eumelanin is the type of melanin that produces the acid mantle maintains the natural pH of hair and skin and protects the the hair growth stage when all cell division stops is the the process of hair turning gray is most commonly caused by the technical name for the hair of the head is known as Answer cortex cortex sebum 3-4 months trichology elliptical the shape of the hair follicle anagen the angle if the follicle reduced color pigment in the cortex layer of the hair medulla environment hair root 2 to 6 years. that papilla has not been destroyed disease and medication cuticle round tightly curled hair white hair mottled hair red germinal matrix more elastic papilla albinism melanocytes follicle cuticle acid mantle eyelash hair only a few weeks mitosis hair brown/balck hair color cuticle catagen stage the natural aging process capilli hair color is influenced by the amount, size and distribution of what stage is knows as the active growing stage of hair that hard, resistant layer pf protein that protects the hair shaft is the resting stage of hair growth when the hair bulb has no attached root sheath is referred to as when looking through a microscope, which portion of the hair would display living cells the muscle that causes the hair to stand on the end when a person is scared or cold is known as the the diameter of a hair fiber will be the same as the technical name for the hair of the eyebrows is known as the cross-section, or diameter, of the hair shaft is much larger in coarse hair than what factor does not effect hair growth human hair, on average, grows about what is the portion of hair that extends above the skins surface people with lighter colored hair have melanin in the fragilitis crinium is the technical name for what color hair generally has the highest number of hairs per square inch on the head traction alopecia can be caused by what procedural step is generally used to determine if hair loss may be identified as androgenetic alopecia each hair strand has about how many layers of cuticle scales small cracks starting in the cuticle and splitting the hair entirely are known as brittle hair, fragilitis crinium or what is the hair loss caused by excessive pulling or twisting on the hair what description refers to the ability of hair to stretch and return to its original shape without breaking what may need to be done to hair in the dry climate to reduce static and soften the hair fibers the premature shedding of hair in the resting stage which can be the result of childbirth, shock, drug intake or fever is of the layers of the cuticle are very close together, the hair has which type of porosity extreme porosity describes hair that has been damaged by the environment or a disorder that refers to a chronic scalp condition with excessive, flaking, which accumulates on the scalp or galls to the shoulders, is red, watery vesicles, or pus-filled areas caused by an itch mite burrowing under the skin are known as baldness that occurs early in life, beginning as early as late adolescence is referred to as what hair problem may be caused by an inherited defect in the hairs keratin protein structure the medical term for greasy or waxy dandruff is malassezia is a microscopic fungus that is the leading cause of excessive matting of the hair is referred to as the amount of hair that should be parted and wrapped around a perm rod, roller or curling iron is influenced by long thick pigmented hair such as scalp and eyebrow hair is referred to as total loss of hair on the scalp is referred to as various hair loss measurement systems identify what hair that has a combination of two or more different porosities is referred to as the degree of coarseness or fineness of the hair fiber is referred to as sudden hair loss in round or irregular patches without the display of an inflamed scalp is referred to as eumelanin and pheomelanin anagen stage cuticle telogen stage hair bulb germinal matrix the inside diameter of the hair follicle supercilia fine hair frequent exercise 1/2 inches per month hair root cortex only slit ends blond tight cornrows ask questions about family history 7 to 12 trichoptilosis traction elasticity surface conditioning telogen effluvium resistant overprocessed pityriasis scabies alopecia prematura trichorrhexis nodosa pityriasis steatoides dandruff pilca polonica density terminal hair alopecia areata universalis treatment options average porosity texture alopecia areata a disorder that refers to thick, crusty patches of res irritated scalp is known as what is the average amount of hair loss daily if the scalp appears abnormal at all, a client should see the most common form of hair loss in both men and women is short, fine, non-pigmented hair that covers most of the body is called the temporary hair loss occurring at the conclusion of pregnancy the loss of pigment in the hair as a person ages is called lumps or swelling along the hair shaft is known as trichorrhexis nodosa or the baby fine, silky hair that is shed shortly after birth and replaced with vellus is known as an abnormal coverage of hair on areas of the body where normally only lanugo, or baby-fine hair appears, is a condition known as a condition in which beads or nodes form on the hair shaft is called excessive amounts of terminal hair found in women in areas of the body where men usually get hair is a condition known as pliability, buoyancy and springiness are words that could be used with your client to describe the name given to grayness or whiteness of the hair is which of the following types of hair loss refers to the loss of hair over the entire scalp and body what conditions results in a situation in which alternating bands of gray and dark hair exist an infestation of head lice on the scalp is called the number of active hair follicles per square inch on the scalp refers to what scalp disease might be present if prior to a service several dry, yellow, encrusted areas on he scalp are noticed along with a peculiar odor bib-medical options for hair loss include the technical term for broken hair is short, fine, non-pigmented hair is replaced with terminal hair around the time of normal dry hair is capable of being stretched about how much of its length of the diameter of a female clintes ponytail has become smaller over time, it could indicate dry flakes attached to the scalp or on the hair, which can appear translucent, are called the ability of the hair to absorb moisture, liquids, or chemicals is known a tinea is the medical term for male pattern baldness takes the shape of psoriasis 40 to 100 a dermatologist androgenetic alopecia vellus postpartum alopacia acquired canities knotted hair lanugo hypertrichosis monilethrix hirsuties elasticity canitites alopecia areata universalis ringed hair pediculosis capitis density tinea favosa wigs or toupees abraded hair puberty 20% androgenetic alopecia pityriasis capitis simplex porosity ringworm a horseshoe-shaped fringe or miniaturization of in androgenetic alopecia, a combination of heredity, hormones and age causes shrinking certain scalp follicles wet hair is able to be stretched to what percent of it length 40% to 50% hair with normal ability to absorb moisture is said to have what kind of porosity average oily flakes combined with sebum, which stick to the scalp in clusters, are known greasy dandruff as a red, circular patch of small blisters on the skin or scalp caused by vegetable ringworm parasite is known as products claiming hair regrowth or hair loss provention cannot be marketed FDA without which agencys prior review and approval the cuticle layers protect which part of the hair strand cortex a highly stimulating, shaking motion describes which massage movement vibration a primary cause of water-spill accidents is excessive water pressure a shampoo bowl that allows you to stand behind the client helps reduce back fatigue which massage movement consists of a light tapping or slapping and is used to tapotement promote muscle contraction for medical and comfort purposes during a shampoo service, it is often lean forward into the shampoo recommended that elderly clients bowl which massage movement involves light, gliding strokes and is often used to begin and/or end a treatment which type of water is generally preferred for shampooing when brushing the clients hair you should begin which type of bristles are recommended for hair brushed what massage movement involves light or heavy kneading and rolling of the muscle the type of cape that is used designing and sculpting services on dry hair is made of what is not true about draping before applying the water stream to a clients scalp when shampooing, always what statement about hard water is true effleurage soft from the ends first, then toward scalp natural petrissage cloth performed after shampooing is complete monitor the water temp hard water does not allow shampoo to lather freely scalp massage involves movements performed on the scalp to relax the muscles blood circulation and increase immediately prior to a chemical avoid performing a scalp treatment when service the capes used for shampooing, wet hair sculpting, designing and chemical waterproof material services are made of plastic or of the basic massage movements, which stimulates the production of natural oil petrissage what type of hair is likely to tangle more easily chemically treated hair what shampoo product cleans hair with either soft or hard water soapless what type of conditioner displaces excess moisture, providing the hair more body building body what items would be discarded following the shampoo service neck strip by keeping one finger in the how should you monitor the temperature of the water during rinsing water stream "how frequently do you shampoo the statement would occur during the consult service essential your hair" the shampoo that is effective for cleaning wigs and hairpieces are liquid dry the shampoo product that deposits protein fragments along the hair shaft is strengthening protein additive which product provides soothing scents and allows fluid movement on the essential oil scalp what is considered the appropriate water pressure for rinsing during shampoo moderate to strong service what statement describes a technique for scalp massage behind the earlobes what type of conditioner closes the cuticle after a color service to prevent the acid-balance color from fading what would not be considered a contraindicaiton a healthy scalp what shampoo is recommended for removing residue such as product buildup clarifying position cape on the outside of what step would be performed first during a shampoo service the shampoo chair perform scalp massage movements starting at the front hairline never use firm scalp manipulations when shampoo is to be followed by any kind of chemical service what step would occur last when performing a wet hair service inclusive of applying shampoo draping, shampooing and conditioning at what point should the condition of the clients hair and scalp be examined before shampooing the hair when performing a shampoo