OREGON BARBER LICENSE (PRACTICE TEST FOR BOARD EXAM) 2023 QUESTIONS AND ANSWERS ALREADY PASSED

Cuticle - CORRECT ANSWER Outer most layer of the hair. It consists of a single, overlapping layer of transparent, scale-like cells that resemble shingles on a roof. It protects the inner cortex layer and contributes to 20% of overall strength of hair. The Cortex - CORRECT ANSWER The middle layer of the hair. A fibrous protein core formed by elongated cells containing melanin to pigment. Gives hair majority of its strength and elasticity. A healthy Cortex contributes to %80 to the overall strength of the hair. Contains melanin that determines hair color. The Medulla - CORRECT ANSWER The innermost layer of hair. Sometimes absent from hair and doesn't play a role in hair coloring. composed of round cells. Texture - CORRECT ANSWER The diameter of an individual hair. Density - CORRECT ANSWER The number of hairs per square inch. Porosity - CORRECT ANSWER The hairs ability to absorb moisture. Low porosity - CORRECT ANSWER The cuticle is tight. The hair is resistant (difficult for moisture or chemicals to penetrate. Thus, it requires longer processing time. Average porosity - CORRECT ANSWER The cuticle is slightly raised. Hair is normal and processes in an average amount of time. High porosity - CORRECT ANSWER The cuticle is lifted. The hair is overly porous and takes color quickly (also fades quickly) Permed, colored, chemically relaxed and straightened hair will have a high degree of porosity. Mixed melanin - CORRECT ANSWER A combination of natural hair color that contain both pheomelanin and eumelanin.