1. 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 Epidermis Dermis & Hypodermis Accessory Structures Repair & Aging A&P Hodgepodge

2. Which layer of the epidermis contains cells undergoing mitosis? * Hint: Even though there may be more than one answer, what is the BEST answer?

4. What are the most abundant cells in the epidermis?

6. How is a tan formed?

8. What is the name for the macrophages that are located in the epidermis. *Note: They are part of the immune system.

10. Name the layers of the epidermis starting with the most superficial and moving deep. *Hint: Don’t forget the extra layer found only in thick skin

12. Which layer of the skin contains blood vessels and nerves closest to the surface of the skin?

14. What accessory structures are found in the dermis?

16. How many layers is the hypodermis divided into?

18. What would you find in the reticular layer of the dermis?

20. What kinds of tissue compose the subcutaneous layer?

22. What kind of glands discharge an oily secretion into hair follicles?

24. What does the nail body cover?

26. What is the name for the pale, crescent-shaped area at the base of the nail?

28. What is the term for the layer of hard keratin that coats the hair?

30. Which kind of gland produces secretions that result in body odor? *Note: The secretions themselves don’t smell bad. The odor is a result of bacteria breaking the secretions down.

32. Why can skin regenerate so readily?

34. What causes wrinkles and sagging skin in older people?

36. What causes gray hair?

38. What is scar tissue?

40. Why would an older person be more prone to skin infections than a younger person?

42. Osseous tissue is also known as what?

44. What is the term for the maintenance of a constant and optimal internal environment in an organism?

46. The chest is __________ to the axilla.

48. What determines the chemical behavior of an atom?

50. When genes are functionally eliminated, the cell loses its ability to create particular proteins. What is the term for this specialization process?