The Dermis I believe lies directly below the Epidermis.
The most active growing portion of the nail is the Lunula. The Lunula is the white lower part of your nail closest to your skin.
Dermis-- The deeper portion or layer of the skin beneath the epidermis.
Snakes do have slimy skin. lower portion of their body, which they use to slide around has tough scales.
Lesion that involves loss of the upper portion of the skin (epidermis) and part of the lower portion (dermis). Ulcers can result from acute conditions such as bacterial infection or trauma, or from more chronic conditions, such as scleroderma
It is the Asthenosphere
all of it...