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2.Sole of Foot 3.Forearm B. Application Answer the following questions in the space provided. 4. Cortisone is a steroid that is applied to the skin to reduce inflammation. Cortisone actson cells within the dermis and can travel through unbroken epidermis to reach cells in thedermis. If the epidermis is such a good barrier, how can cortisone easily travel through it? 5. Explain how dandruff is formed. 6. Joey has a splinter in his finger. His mother pulled the skin away from the splinter with a sterile needle and removed the splinter. Joey did not feel pain and did not bleed. Explain.
7. Identify the epidermal layer(s) in which the following cancers arise: (a) basal cellcarcinoma; (b) malignant melanoma; (c) squamous cell carcinoma. 8. Name the part(s) of the skin that “peel(s)” off after a minor sunburn. 9. As we age, our skin wrinkles due to changes in collagen and elastic fibers in the dermisand a decrease in their production. Explain why topical application of collagen and elasticfibers would not eliminate wrinkles.