HUMAN BIOLOGY, BIOMEDICAL ISSUES AND SOCIETY

JOURNAL QUESTIONS

Chapter 3
The Skin

  

  1. What are the major functions of the skin?
  2. What are the two layers of the skin? What kind of tissue is each layer made of? What is the hypodermis (subcutaneous layer)?
  3. What 6 facts did you find most interesting about the epidermis?
  4. What do cells called melanocytes make? What causes people to have different skin color? What is an albino?
  5. What do cells called keratinocytes make? Where are they found? Why is keratin important?
  6. What structures are found in the dermis? What tissue makes up this layer? What important vitamin is made in the dermis?
  7. Describe the importance of papillae
  8. What are eccrine glands? Apocrine glands? Why is each type of gland important?
  9. What is the role of sebaceous glands?
  10. What are the root, shaft and hair follicle? What is the arrector pili and what does it cause?
  11. What are the four senses located in the skin?
  12. Describe the subcutaneous layer or hypodermis
  13. What is cutaneous pharmacology? Give 2 examples
  14. Why is it appropriate for the skin to have an immune function? Briefly describe the skin's immune function. Why are Langerhans and T-cells important to this function?
  15. What is a transdermal drug and how are they important?
  16. What changes occur in the skin as you age? (Boo Hoo)