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3. The central core of the hair shaft sometimes missing in fine or very fine hair is the:
6. The lips, soles of the feet, palms of the hands and eyelids do not have:
7. Hair that is 90% cortex and 10% cuticle when compared to hair that is 40% cuticle would be considered to be more:
8. Bundles called melanosomes are formed by:
10. The follicle in straight hair is typically:
11. The layer of hair consisting of unique protein structures that give the hair most of its pigment and strength (elasticity) is called the:
12. Located at the bottom of the follicle and supplying nourishment to the germinal matrix is the:
14. The hard, resistant layer of protein that protects the hair shaft is the:
15. The hair follicle that produces tightly curled hair is typically:

1. Mitosis takes place in the area of the hair bulb called the:
2. The technical name for the hair of the head is known as:
4. Gray hair is sometimes referred to as
5. What is formed when sebum produced by the oil glands mixes with the body's perspiration
9. The technical term for the study of hair is called:
13. Which of the following descriptions is NOT one of the main purposes of hair