Biomed 100 Practice Quiz
Chapter 6, Fall 2007

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1. Which one of the following contains the highest percentage of mitotic (reproducing) cells?
   1. dermis
   2. stratum basale
   3. stratum corneum
   4. striated muscle tissue
   
   
2. Prior to being exfoliated, most epidermal cells were filled mainly with
   1. keratin
   2. melanin
   3. calcium
   4. collagen
   
   
3. True or false? It would be considered normal for living melanocytes to be present in the deepest layer of the epidermis.
   1. True.
   2. False.
   
   
4. The dermis contains
   1. nerve fibers
   2. blood vessels
   3. both of the above
   4. none of the above
   
   
5. The ducts of _?_ are connected to hair follicles.
   1. sebaceous (oil) glands
   2. merocrine (watery sweat) glands
   3. both of the above
   4. none of the above
   
   
6. True or false? The epidermis is dependent on the blood vessels of the dermis for oxygen and nutrients.
   1. True.
   2. False.
   
   
7. True or false? Darker skin contains more melanocytes per square centimeter than does lighter skin.
   1. True.
   2. False.
   
   
8. Each hair follicle is
   1. composed of and surrounded entirely by dermis
   2. a small tube of dermis that has grown into the epidermis
   3. a small tube of epidermis that has grown into the dermis
   4. none of the above
   
   
9. Mitosis is the least directly involved in _?_ in the skin.
   1. hair growth
   2. oil production
   3. temperature regulation
   4. generation of epidermal layers