Hair Structure and Function - Final Written Exam

Final written exam Question What is the main purpose of hair? The technical term for the study of hair is called? When looking through a microscope, which portion of the hair would display living cells? Hair grows from a tube-like "pocket" called a root sheath or a The diameter of a hair fiber will be the same as what is the natural flow of hair determined by? The two promary parts of hair are the hair fiber and the what is the protion of hair that extends above the skin's surface which of the following resembles the shape of a golf club and covers the follicle at the lower portion of the hair root? Located at the bottom of the follicle and supplying nourishment to the germinal matrix is the... The three major layers of the hair are the medulla, cortex and which of the following? The pigment that gives hair its color is found primarily in the The hair shaft consisting of unique protein structures that gives hair elasticity is called the The outer covering of the hair shaft made up of overlapping layers of transparent scales is called the Hair that has been pulled out from the roots can grow back if Oil glands are attached to the side of the THe central core of the hair shaft sometimes missing in fine or very fine hair is called the: What helps protect the hair and skin from becoming too dry? What is formed when sebym produced by the oil glands mixes with the body's perpiration? The muscle that causes the hair to stand on end when a person is scared or cold is known as the: Hair is made up primarily of: What is known as the active stage of hiar growth? The active growing stage of hair lasts from: Catagen, a brief trasistional phase, last for what amount of time? The hair growth stage when all cell division stops is the: The resting stafe of hair growth whe the hair bulb has no attached root sheath is referred to as the: Human hair, on the average, grows about: The lips, solesof the feet, palms of the hands and eyelids do not have: Cilia is the technical term for THe cross-section, or diameter, of the hair shaft is much larger in coarse hair than: which of the following is the hard, resistant layer of protein that protects the hair shaft? The large variety of hair color is influenced by the amount and distribution of what is the lack of pigmentation in the hair and skin called? Gray hair is caused by a(n): the process of hair turning gray is usually caused by: The degree of coarseness or fineness of the hair fiber is referred to as: Answer Adornment, protection from cold, and protection from injury. Trichology Hair bulb follicle the inside diameter of the hair follicle the angle of the follicle hair root hair fiber bulb papilla cuticle cortex cortex cuticle the papilla has not been destroyed root sheath or follicle Medulla sebum acid mantle arrector pili protein anagen stage 2 to 6 years only a few weeks catagen stage telogen stage 1/2 inch per month hair eyelash hair fine hair cuticle emulelanin and pheomelanin albinism reduced color pigment, melanin, in the cortex layer of the hair the natural aging process texture The number of active hair follicles per square inch on the scalp refers to: The amount of moisture able to be absorbed by hair is its: If the layers of the cuticle are very close together the hair has which type of porosity? Wxtreme porosity describes hair that has been damaged by the environment or: Which of the following refers to the ability of hair to stretch and return to its original shape without breakng? Wet hair is able to be stretched to what percent of its length? Small cracks starting in the cuticle and splitting the hair entirely are known as brittle hair, fragilitis crinium or: Lumps or swelling along the hair shaft is known as trichorrhexis nodosa or: Which of the following is a condition in which alternating bands of gray and dark hair exist? Acosmetologist may have to remove excess hair from areas where there is abnormal coverage, a condition known as: Removal methods for hypertrichosis range from tweezing to electrolysis, depending on what factors? A condition in which beads or nodes form on the hair shaft is called A disorder that refers to an overabundance of epithelial cells that have accumulated on the scalp or fallen to the shoulders is known as dandruff or: What are dry epithelial cells attached to the scalp or on the hair. accompanied by itchiness called? The medical term for greasy or waxy dandruff is: A red, circular patch of small blisters caused by a vegetable parasite is also known as tionea or: An infestation of head lice on te sclap is called: How should a cosmetologist handle a situation when areas of enlarged open follicles surrounded by clusters of red spots, indicating tinea capitis are observed? What scalp disease might be present if prior to a service several sry, yellow, encrusted areas on the scalp are noticed along with a peculiar odor? Red, watery vesicles or pus-filled areas caused by an itch mite burrowing under the skin are known as Which hair color generally has the highest number of hairs per square inch on the head? Long, thick pigmented hair such as scalp and eyebrow hair is referred to as: Hair follicles that are predetermined to produce short, fine, non pigmented hair that cover most of the body are called: Short, fine, non-pigmented hair is replaced with terminal hair around the time of what is the average amount of daily hair loss? Alopecia, or excessive hair loss, may be caused by: The most common form of hair loss in both men and women is In androgenetic alopecia, a combination of heredity, hormones and age causes: Which procedural step is generally used to determine if hair loss may be identified as androgenetic alopecia? There is a gradual conversion from terminal hair follicles to velluslikefollicles in clients with: In men, male pattern baldness takes the shape of: A smaller diameter ponytail on female clients is a sign of: Various hair loss identification systems identifies: density porosity resistant overprocessed elasticity 40% to 50% trichoptilosis knotted hair ringed hair hypertrichosis client preference, location of the hair and amount of hair to be removed monilethrix pityrisis pityriasis capitis simplex pityriasis steatoides ringworm pediculosis capitis refer the client to a physician tinea favosa scabies blonde terminal vellus puberty 40 to 100 strands fungal infection, bacterial infection or inflammatiry disease of the scalp androgenetic alopecia shrinking or miniaturization of follicles ask questions about family history androgenetic alopecia horseshoe- shaped fringe androgenetic alopecia pattern and density of the hair loss The normal temporary hair loss occuring at the conclusion of pregnancy is: Sudden hair loss in round or irregular patches without the display of an inflamed scalp is reffered to as: The premature shedding of hair in the resting phase which can be the result of childbirth, shock, drug intake or fever is: Hair loss caused by excessive pulling or twisting on the hair or by chemical damage is called: Brushing the hair prior to a shampoo service accomplishes: What type of hair is likely to tangle more easily? scalp massag involves manipulations performed on the scalp to relax the muscles and stimulate Avoid giving a scalp massage prior to these services For medical and comfort purposes during a shampoo service, it is often recommended that elderly clients: What steps would occur the latest when performing a wet hair service inclusive of draping, shampooing and conditioning? At what point should the condition of the client's hair and scalp be examined when performing a shampoo? Pstpartum alopecia alopecia areata telogen effluvium traumatic alopecia removing tangles removing dust and dirt and stimulating blood circulation chemically treated hair blood circulation relaxing healthy hair coloring healthy hair or perming healthy hair lean forward into the shampoo bowl applying shampoo before shampooing the hair