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11WB topic 1-2-3-
chapter 11 disorders of the skin workbook topic 1 2 3
| Question | Answer |
|---|---|
| . The treatment of the hair and scalp includes regular ___________ | shampooing |
| ___ is the scientific study of hair, its disorders, and care | Trichology |
| The purpose of a shampoo product and service is to ------ the scalp and hair. | cleanse |
| Threadlike–appendage of the skin and scalp is ---- | hair |
| The root is the portion of hair ___________ | below the skin surface |
| Hair is composed chiefly of a protein called-------- | keratin |
| involuntary muscle fiber | arrector pilli |
| As long as the ----------is healthy and well nourished, new hair will grow | papilla |
| Innermost layer of the hair: | medulla |
| The ________forms the lower part of the hair root | bulb |
| A healthy, compact ___layer is the hair’s primary defense against damage | cuticle |
| Certain chemical solutions soften and raise the cuticle scales to allow for ____into the cortex | absorption |
| Chemicals with an _____ pH can penetrate the cuticle layer | alkaline |
| The_____ is the middle layer of the hair and is a fibrous (protein) core | cortex |
| The cortex contains ____ pigment and provides ____ ,____ , and natural color to the hair. | melanin, strength, elasticity |
| Sebum production may be influenced by diet, ___, the condition of the endocrine glands + drugs | emotional disturbs |
| Hair that is very fine or naturally blond may not have a ------ | medulla |
| Hair is approximately(_) percent protein | 91 |
| Protein is made up of long chains of amino acids, which are made up of : | elements |
| The elements found in human hair are : | carbon-oxygen-hydrogen- nitrogen-sulfur |
| The five elements found in hair are referred to as the ( - ) elements | Cohns |
| Average hair is (-) percent carbon and (-) percent sulfur | 51 - 5 |
| Average hair is (-) percent oxygen | 21 |
| Average hair is (-) percent hydrogen, and (-) percent nitrogen | 6 -17 |
| (-) are organic compounds necessary for life that are made of long chains of chemical units known as (-) | (Proteins) (amino acids) |
| The peptide bonds are the (-) (chemical) bonds in the cortex as they join each amino acid to form the polypeptide chain | strongest |
| Peptide bonds can be broken through over-stretching or strong (-) or (-) solution | acidic---alkaline |
| Once end bonds are broken, there is no way of (-) them. | re-forming |
| A long chain of amino acids joined by peptide bonds is called a : | (polypeptide) or (polypeptide chain) |
| Polypeptide chains intertwine to create a coil or spiral of protein called a : | (helix) |
| Chemicals such as (-) thioglycolate and (-) hydroxide will break disulfide bonds. | ammonium sodium |
| Side bonds, also known as (-) consist of hydrogen, salt, and disulfide bonds; these bonds account for the strength and elasticity of human hair | cross bonds |
| (-) bonds account for the strength and elasticity of human hair | Side |
| Hydrogen bonds are physical side bonds that are easily broken by (_)or (_) | water heat |
| A (-) bond is also a physical ionic bond and will react to changes in (pH) . | salt |
| Salt bonds are easily broken by strong (---) or (--) solutions | acidic alkaline |
| __ __ are covalent bonds that are also known as (sulfur) bonds, (cysteine) bonds, or (S-bonds) | Disulfide bonds |
Created by:
cylearc1