integument, commonly called skin, forms the outer covering of the
body, and functions in
- Temperature regulation,
- Vitamin D production and
- Artistic medium for tattoos
The skin consists of several layers:
- The surface epithelial layer,
the epidermis, and
- An underlying connective tissue
layer, the dermis.
- The subcutaneous layer
(also known as the hypodermis or superficial fascia), is a
connective tissue layer attaching skin to structures beneath it.
Thus, skin is considered an organ,
and in fact is the largest organ of the body.