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Cosmetology
Ch. 11 Test
| Question | Answer |
|---|---|
| The sebaceous glands contain the blood and nerve supply that provide the nutrients needed for hair growth. | False |
| The hair cuticle consists of an overlapping layer of transparent, scale-like cells that look like shingles on a roof. | True |
| Hair is approximately 60 percent protein. | False |
| Eumelanin provides natural colors ranging from red and ginger to yellow and blond tones. | False |
| Vellus hair is not pigmented and almost never has a medulla. | True |
| The complete loss of all body hair is known as aleopecia totalis. | False |
| The hair, skin, nails, and glands are known collectively as the: | Integument |
| The five main structures of the hair root include all of the following except the: | Epidermis |
| The pocket or tube-like depression in the scalp or skin that contains that hair root is the: | Follicle |
| The thickened, club-like structure that forms the lower part of the hair root is the: | Hair Bulb |
| A small, cone-shaped are located at the base of the hair follicle that fits into the hair bulb is the: | Dermal Papilla |
| The tiny, involuntary muscle fiber in the skin inserted in the base of the hair follicle is the: | Arrector Pili |
| Which layer of the hair shaft creates the shine and the smooth, silky feel of healthy hair? | Cuticle |
| A lengthwise section of hair shows that cuticle scales overlap and each individual cuticle scale is attached to the: | Cortex |
| The fibrous protein core formed by elongated cells that contains melanin pigment is the: | Cortex |
| The medulla, the innermost layer of the hair, is composed of cells that are: | Round |
| The hair shaft that emerges from the scalp is a nonliving fiber composed of: | Keratinized Protein |
| The major elements that make up human hair are carbon, oxygen, hydrogen, nitrogen, and sulfur, often referred to as the: | COHNS elements |
| A long chain of amino acids linked by peptide bonds are called a: | Polypeptide Chain |
| A physical side bond that is easily broken by water and heat is a: | Hydrogen Bond |
| A weak, physical, cross-link side bond between adjacent polypeptide chains that is broken by changes in pH is a: | Salt Bond |
| Permanent waving and hair relaxers change the shape of hair by chemically altering the hair's: | Disulfide Bond |
| All natural hair color is the result of pigment located in the cortex called: | Melanin |
| The melanin that provides brown of black color to hair is: | Eumelanin |
| Which of the following terms is used to describe hair's wave pattern? | Curly, Straight, and extremely curly |
| Vellus hair is the short, fine, and downy hair also known as: | Lanugo Hair |
| The three growth cycles of human hair are: | Anagen, catagen, and telogen |
| The resting phase or final phase of the hair cycle that lasts until the fully grown hair is shed is the: | Telogen Phase |
| The sudden falling out of hair in round patches or baldness in spots is: | Alopecia Areata |
| The technical term for gray hair is: | Canities |
| Trichoptilosis is the technical term for: | Split Ends |
| A condition that is characterized by brittleness and the formation of nodular swellings along the hair shaft is: | Trichorrhexis Nodosa |
| Current research confirms that dandruff is the result of a fungus called: | Malassezia |
| Tinea is characterized by itching scales and sometimes painful circular lesions and is caused by: | Fungal Organisms |
| The thickness or diameter of the individual hair strand is referred to as hair: | Texture |
| The measurement that describes the number of individual hair strands on 1 square inch of the scalp is: | Density |
| The ability of the hair to absorb moisture is: | Porosity |
| The ability of hair to stretch and return to its original length without breaking is referred to as hair: | Elasticity |
| Hair flowing in the same direction, the result of follicles sloping in the same direction form a: | Hair Stream |
| Dry hair and scalp should be treated with products that contain moisturizers and: | Emollients |
| The scientific study of hair and its diseases and care | Trichology |
| The part of the hair located below the surface of the epidermis | Hair Root |
| The outermost layer of hair | Cuticle |
| An oily substance that lubricates the hair and skin | Sebum |
| The growth phase, during which new hair is produced | Anagen |
| The medical term for ringworm | Tinea |
| Temporary hair loss experienced at the end of a pregnancy | Postpartum Alopecia |
| The technical term for brittle hair | Fragilitas Crinium |
| Long, coiled, complex polypeptides made of amino acids | Proteins |
| Refers to the shape of the hair strand | Wave Pattern |
Created by:
Cerrabeth2