1. Integumentary system (Skin and its derivatives)

2. Skin, general arrangement

3. Comparison of thick skin and thin skin

4. LM of thick skin and thin skin

5. Layers of epidermis and dermis, LM, sag.s.

6. Layers of epidermis

7. EM of epidermal layers

8. EM of the stratum spinosum

9. Melanocytes and their function

10. Melanocytes and melanosomes of epidermis

11. Langerhans cells of epidermis

12. Papillary dermis

13. Reticular dermis

14. Sweat gland and a sebaceous gland

15. LM of an eccrine sweat glands

16. LM of an apocrine sweat glands

17. LM of sebaceous glands and hair follicles

18. Hair shaft, sweat and sebaceous glands

19. Hair root and adjusting structures

20. LM of a pilosebaceous unit

21. Pilosebaceous unit and hair follicles

22. Hair papilla, hair bulb, and hair follicle

23. EM of part of a hair and its follicle

24. Pilosebaceous unit and arrector pili muscle

25. Structure of the thumbnail