Cosmo 52- Wk2 (Ch 16 &11)

Pregunta	Respuesta
Interior guideline	"The inside of the haircut rather than on the perimeter," (387).
Notching shears Image: Notching+Shears (binary/octet-stream)	An aggressive version of point cutting towards the ends of the hair. (See 395)
Clipper-over-comb Image: Clipcomb (binary/octet-stream)	"The clippers move side to side across the comb rather than bottom to top," (400).
Rockwell hardness	How hard the metal for shears is. The ideal RH is 56/57. (See 371)
Natural distribution	"Where and how hair is moved over the head, when locating the bang area," (390).
Shears Image: Shear (binary/octet-stream)	"Also known as scissors. Mainly used to cut blunt or straight lines in the hair. They may also be used to slide cut, point cut," (370).
Japan, Germany, and United States	"Three countries are primarily responsible for manufacturing the steel used to make professional shears," (371)
Head shape	"The shape of the head, referred to as the head form, also known as head shape," (358).
Diagonal lines Image: Diagonal2 (binary/octet-stream)	"Between horizontal and vertical and they have a slanting or sloping direction," (362). Diagonal Forward Diagonal Back
Gravity	"Hair that grows below the parietal ridge, or crest, hangs because of gravity," (360).
Angles	"Angles are important elements in creating a strong foundation and consistency in haircutting because this is how shapes are created," (361).
Convex Image: Convex (binary/octet-stream)	"Has a receding forehead and chin," (312).
Weight-line	"A visual line in the haircut where the ends of the hair hang together," (382).
Palm-to-palm	"The palms of both hands are facing each other while cutting," (381).
Angle	"Space between two lines or surfaces that intersect at a given point," (438).
Client consultation	The first step is when greeting a client.
Texturizing	"Haircutting technique designed to remove excess bulk without shortening the length; changing the appearance or behavior of the hair through specific haircutting techniques using shears, thinning shears, or a razor," (441).
Minimum tension	Hair not pulled tightliy.
Haircutting shears	Shears that are specific to cutting hair.
Bang/Fringe	Front triangle area from temples back.
Elevation	"Also known as projection or lifting; the degree at which a subsection of hair is held, or lifted, from the head when cutting," (439).
Design lines	Lines in a haircut that creates a design.
Layered haircut	"Effect achieved by cutting the hair with elevation or overdirection; the hair is cut at higher elevations, usually 90 degrees or above, which removes weight," (439).
Blunt haircut	"Also known as a one-length haircut; haircut in which all the hair comes to one hanging level, forming a weight line or area; hair is cut with no elevation or overdirection," (438).
Dermal Papilla (DUR-mul puh-PIL-uh]) Image: Download (binary/octet-stream)	"small, cone-shaped elevations at the base of the hair follicles," (157).
Trichology	"The scientific study of hair and its diseases and care," (251).
Hair Cuticle Image: Cuticle (binary/octet-stream)	"Outermost layer of hair; consisting of a single, overlapping layer of transparent, scale-like cells that look like shingles on a roof," (249).
Cortex Image: Cuticle (binary/octet-stream)	"Middle layer of the hair; a fibrous protein core formed by elongated cells containing melanin pigment," (249).
Medulla Image: Cuticle (binary/octet-stream)	"Innermost layer of the hair that is composed of round cells; often absent in fine and naturally blond hair," (250).
Pityriasis	"The technical term for dandruff; characterized by excessive production and accumulation of skin cells," (250).
Malassezia	"Naturally occurring fungus that is present on all human skin, but is responsible for dandruff when it grows out of control," (250).
Tinea	Ring worm
Pediculosis Capitis	head lice
Furuncle	"Boil; acute, localized bacterial infection of the hair follicle that produces constant pain," (249).
Carbuncle	"Inflammation of the subcutaneous tissue caused by staphylococci; similar to a furuncle but larger," (249).
Keratinization (kair-uh-ti-ni-ZAY-shun)	"Process by which newly formed cells in the hair bulb mature, fill with keratin, move upward, lose their nucleus, and die," (250).
Helix	"Spiral shape of a coiled protein created by polypeptide chains that intertwine with each other," (250).
Hydrogen Bonds	"A weak, physical, cross-link side bond that is easily broken by water or heat," (250).
Disulfide Bonds	"Strong chemical side bond that joins the sulfur atoms of two neighboring cysteine amino acids to create one cystine, which joins together two polypeptide strands like rungs on a ladder," (249).
Lanthionine Bonds	"The bonds created when disulfide bonds are broken by hydroxide chemical hair relaxers after the relaxer are rinsed from the hair," (250).
Melanin	Natural pigment of the hair.
Vellus Hair	"Also known as lanugo hair; short, fine, unpigmented, and downy hair that appears on the body, with the exception of the palms of the hands and the soles of the feet," (251).
Terminal Hair	"Long, coarse, pigmented hair found on the scalp, legs, arms, and bodies of males and females," (251).
Anagen	The first part of the growth phase
Catagen	Transition phase
Telogen	Resting/end phase of hair
Trichoptilosis	split ends
Canities	gray hair
Hypertrichosis	"Also known as hirsuties (hur-SOO-shee-eez); condition of abnormal growth of hair, characterized by the growth of terminal hair in areas of the body that normally grow only vellus hair," (250).

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