In depth look at nails, hair, sebaceous glands and sweat glands that derive from epidermis yet extend into the dermis.
skin
Integumentary System Part 1
Skin structure, function, details of the epidermis, dermis and hypodermis layers, and a bit about skin cancer.
If you are in your 20’s or younger, you need to read this
For you see, I was around 24 years old when I learned how to properly peel a banana.