Grace,+Dana,+Lee

1. What are the main functions of the skin? The Skin is used for protection, sensation, and production of vitamin D. it also helps regulate body tempature.

2. What are the three main layers of the skin? Epidermis, Dermis and Hypodermis.

3. Name three functions of the epidermis 4. Arrange the following epidermal layers from deeper to most superficial a.Stratum lucidum b. Stratum basale c. Stratum corneum d. Intermediate strata
 * 1) Vitamin D synthesis
 * 2) Protection/ waterproof
 * 3) Detective Sense
 * BDAC ||

5. Match the terms in the two columns below as best applicable based on their relation

a. Stratum corneum 1. Protects skin cells from UV rays b. Stratum basale 2. Yellow skin c. Stratum lucidum 3. Layers of keratinized, flat, dead cells d. Vitamin D 4. Protein that makes cells water-proof e. Cyanosis 5. Mitosis of epidermal cells happens here f. Carotene 6. Blue skin due to poor oxygen g. Melanocyte 7. Only present in palms of hands and soles of feet h. Melanin 8. Essential for Ca absorption by bones i. Keratin 9. Cells that make melanin

a. ﻿3, b. 5﻿ , c. 7 , d. 8 , e. 6 , f. 2 , g. 9 , h. 1 , i. 4