2. List the 3 major regions of the skin (and which one is not tecmilit 3. What is the hypodermis primarily composed of? 4. Know that epidermis is stratified squamous epithelial tissue. How does it get its nutrients? 5. Know the 5 layers of the epidermis, their order and their general functions. Which layer is mitotically active (dividing \& growing?) 6. Know what melanocytes and keratinocytes produce (and the function of each). What is the function of dendritic cells? 7. What are the 2 layers of the dermis. Which layer has greatest structural strength? What fiber provides that strength? What are the blood vessels in the papillary layer for? .