1. SKIN DIAGRAM Let’s Label it Up!

2. SKIN Diagram - LEFT Epidermis Dermis Hypodermis (subcutaneous)

3. SKIN Diagram - RIGHT Hair shaft

4. SKIN Diagram - RIGHT Stratum corneum S. lucidum S. granulosum Stratum spinosum Stratum basale

5. SKIN Diagram - RIGHT Sebaceous (oil) gland

6. SKIN Diagram - RIGHT Arrector pili muscle Nerves

7. SKIN Diagram - RIGHT Hair follicle Papilla of hair bulb Adipose

8. SKIN Diagram - RIGHT Sudoriferous (sweat) glands

9. Why is this a “mutant” section of skin? Stratum lucidum is only present in hairless areas of skin

10. How does the skin do it? In lower layers of the epidermis cells are dividing because they are close to the blood supply of the dermis. As cells are pushed up to surface they die off and gain more keratin.

11. NAIL DIAGRAMS Let’s Label it Up!

12. TOP Nail Diagram – on LEFT Lunula Cuticle

13. TOP Nail Diagram – on RIGHT nail body/plate lateral nail fold

14. Sagittal View Nail Diagram – on LEFT Nail root Nail matrix

15. Sagittal View Nail Diagram – on RIGHT cuticle nail body/plate free edge bone/osseous tissue stratum basale

16. Why do nails look pink? Nails look pink due to the blood supply of the dermis

17. What area of the nail is responsible for nail growth? The nail matrix is responsible for nail growth. -> The lunula appears white due to the thickened stratum basale underneath