Chapter 11 Exam: Hair Structure and Properties

Ch. 11 Exam Question The thickness or diameter of the individual hair strand is referred to as hair What structures contain the blood and nerve supply that provide the nutrients needed for hair growth? What is the technical term for beaded hair? A lengthwise section of hair shows that cuticle scales overlap and each individual cuticle scale is attached to the . Permanent waving and hair relaxers change the shape of hair by chemically altering the hair's . Dry hair and scalp should be treated with products that contain moisturizers and . What severe form of dandruff is accompanied by redness and inflammation? The thickened, club-like structures that forms the lower part of the hair root is the . All natural hair color of the result of pigment called . What is the growth phase during which new hair is produced? The fibrous protein core formed by elongated cells that contains melanin pigment is the . Which terms refers to a layer that protects the hair from penetration and prevents damage to hair fibers? Which layer of the hair shaft creates the shine and the smooth, silky feel of healthy hair? The small, involuntary muscle fiber in the base of the hair follicle is the . The ability of hair to stretch and return to its original length without breaking is referred to as hair . What are the three growth cycles of human hair? The Greek word trichos means . Which type of hair has the largest diameter and usually requires more processing? What type of hair is short, fine, unpigmented, and downy? Tinea is characterized by itching scales and sometimes painful circular lesions and is caused by . The ability of the hair to absorb moisture is hair . What part of the hair is located below the surface of the epidermis? What is a scalp disorder characterized by dry, sulfur-yellow, cup-like crusts on the scalp? What term refers to an infestation of the hair and scalp with head lice? The pigment that provides brown or black color to hair is . Trichoptilosis is the technical term for . Vellus hair is also known as hair. Chemical services performed on hair with low porosity require a solution. What is the technical term for grey hair? Hydroxide chemical relaxers break disulfide bonds and convert them to bonds. The pocket or tube-like depression in the scalp or skin that contains the hair root is the hair . The complete loss of all body hair is known as . What is the technical term for brittle hair? What is a severe type of dandruff characterized by an accumulation of greasy or waxy scalp scales mixed with sebum? What substances are comprised of long, coiled, complex polypeptides made of amino acids? The sudden falling out of hair in round patches or baldness in spots is known as . The hair, skin, nails, and glands are part of the system. A long chain of amino acids linked by peptide bonds is called a chain. Hair flowing in the same direction, as the result of follicles sloping in the same direction, is known as a . Answer Texture Dermal Papillae Monilethrix Cortex Disulfide Bond Emollients Seborrheic Dermatitis Hair Bulb Melanin Anagen Cortex Hair cuticle Hair Cuticle Arector Pili Elasticity Anagen, catagen, telogen Hair Coarse Hair Vellus hair Fungal Organisms Porosity Hair Root Tinea Favosa Pediculosis Capitis Eumelanin Split ends Lanugo More alkaline Canities Lanthionine Follicle Alopecia Universalis Fragilitas Crinium Pityriasis Steatoides Proteins Alopecia Areata Integumentary Polypeptide Hair Stream What is the oily substance secreted by the skin's oil glands that lubricates the hair and skin? What is the cross-section shape of curly hair? The major elements that make up the human hair are carbon, oxygen, hydrogen, nitrogen, and sulfur, often referred to as . What term refers to the scientific study of hair and its diseases and care? What type of bond is broke by wetting the hair with water and is reformed when the hair dries? The changes involved in oxidation hair coloring, wet setting, thermal styling, permanent waving, and chemical hair relaxing take place within the . The three different types of side bonds that link chains of amino acids together are . Sebum Oval COHNS elements Trichology Hydrogen Bond Cuticle Hydrogen, Salt, and Disulfide Wave Pattern 90 What term refers to the shape of the hair strand? Hair is approximately percent protein. The units of structure that build protein and are joined together end to end like pop beads Amino Acids are . Current research confirms that dandruff is the result of a fungus called . Malassezia