hair theory

4. mixes with perspiration to form the acid mantle
6. protects cuticle/maintains acid balance of hair and skin
7. affect structural organization of hair
11. lack of pigmentation in hair and skin
12. determines hair structure,color,shape and diameter
13. active growing stage/attached root sheath
14. outer covering of hairstrand
16. reduced melanin in cortex
20. causes hair to stand on end when a person is scared or cold
22. portion of hair that extends above skin's surface?
24. hard and resistant
25. hair can be affected by illness,lack of vitamins and minerals,disease and what else?
26. hair is primarily made up of protein
27. portion of hair follicle under the skin's surface?
28. soft and elastic

1. central core of hairstrand
2. process of cells changing shape,drying out and forming keratin protein
3. filled with capillaries that supply nourishment to cells
5. brief transitional stage/cell division stops
8. what is the study of hair?
9. the cross-secttion view of the follicle that has more of an oval shape?
10. what is the cross-section view of the follicle that is typically round?
15. the cross-section view of the follicle that has a flattened or elliptical shape?
17. where does hair grow from?
18. resting stage/no attached root sheath
19. filled with capillaries that supply nourishment to cells
21. second layer of hairstrand
23. affects absorption of moisture from the air