Cosmetology Studying
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| The scientific study of hair, its diseases, and care is called | trichology
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| The follicle, bulb, papilla, arrector pili muscle, and subsceous glands are main structure of the | hair root
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| The tubelike depression or pocket on the skin or scalp that contains the hair root is the | follicle
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| The follicle extends downward from the epidermis, where it surrounds the | dermal papilla
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| A small, cone-shaped area at the base of the hair follicle that fits into the hair bulb is the | dermal papilla
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| A tiny, involuntary muscle fiber inserted in the base of the hair follicle is the | arrector pili
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| An oily substance secreted from the sebaceous glands is | sebum
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| The overlapping layer of hair with transparent, scalelike cells is the | cuticle
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| Swelling the hair raises the cuticle layer and allows for | penetration
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| For chemicals to penetrate a healthy cuticle hair layer they must | have an alkaline pH
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| The fibrous protein core of the hair, formed by elongated cells containing melanin pigment, is the | cortex layer
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| The medulla is the innermost layer of the hair is composed of | round cells
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| Hair is composed of a protein that grows from cells originating within the | hair follicle
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| The process by which living cells mature and begin their journey up the hair shaft is | keratinization
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| The five main elements that make up the chemical composition of human hair | carbon, oxygen, hydrogen, nitrogen, and sulfur
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| The chemical bonds that hold together the amino acid molecules are | peptide bonds
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| The end bon is also known as a | peptide bond
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| When peptide bonds hold together a very long chain of amino acids, it is called a | polypeptide chain
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| The three types of cross-links that form the bonds between the polypeptide chains are hydrogen bonds, salt bonds, and | disulfide bonds
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| A weak type of physical side bond that is easily broken by water or heat is a | hydrogen bond
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| A salt bond is easily broken with the use of | strong alkaline or acidic solutions
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| Bonds that must be chemically treated separated are | disulfide bonds
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| Hydrogen chemical hair relaxers break disulfide bonds and during rinsing convert them to | lanthionine bonds
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| Pattern of extremely curly hair grows | in long twisted spirals
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| Four important factors to consider in hair analysis are | texture, porosity, elasticity, and density
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| The thickness or diameter of the individual hair strand is the | hair texture
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| The measurement of individual hair strands on one square inch of the scalp is | hair density
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| The ability of the hair to absorb water or oil is | porosity
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| Chemical services performed on hair with low porosity require | more alkaline solutions
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| Hair with high porosity is often the result of | over processing
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| The ability of the hair to stretch and return without breaking is | elasticity
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| Wet hair with normal elasticity will stretch up to | 50 percent
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| Dry hair and scalp can be caused | inactive sebaceous glands
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| Oily scalp and hair can be treated by properly shampooing with | normalizing shampoo
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| Hair that is not pigmented and almost never has a medulla is | vellus
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| Long, soft hair found on the scalp, legs, arms, and bodies of males and females is | terminal
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| The phases of hair growth are anagen, catagen, and | telogen
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| The growth phase where new hair is produced is | anagen
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| The average growth of healthy scalp hair is | one inch per month
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| The final or resting phase in the hair growth cycle is | telogen stage
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| Two products approved by the fda to stimulate hair growth and allowed for sale in the US are | minoxidil and finasteride
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| The technical term for gray hair | cantities
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| A variety of cantities characterized by alternating bands of gray and pigmented hair is | ringed hair
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| A condition of abnormal hair growth on area of the body | hypertrichosis
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| Trichorrhexis nodosa is characterized by brittleness of the hair and formulation of | swellings along the hair shaft
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| The technical term used to describe beaded hair is | monilethrix
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| The medical term for dandruff is | pityriasis
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| The medical term used to describe a fungal organism characterized by itching, scales, and painful circular lesions is | tinea
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| the type of fungal infection characterized by red papules at the opening of the hair follicles is | tinea capitis
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| The highly contagious skin disease caused by a mite parasite is | scabies
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| An acute localized bacterial infection of the hair follicle that produces constant pain | a furuncle
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| And inflammation of the subcutaneous tissue caused by staphylococci is | a carbuncle
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
BrittneeB