Dermis is the inner layer of the two main layers of skin. 

The dermis layer of skin has connective tissue, blood vessels, oil and sweat glands in it. 

Its main function is to transmit signals to the brain about how something feels. 

The dermis is full of blood vessels and nerve endings. The blood vessels located in the dermis help to remove toxins and supply the epidermis (outer layer) with blood.  The dermis works as a protector from toxins that have bypassed the epidermis.

Example of Dermis in a sentence
He cut his finger down to the dermis which was very painful.

epidermis, skin layer, epithelium, skin