The main function of the dermis is to?

The primary function of the dermis is to support and nourish the epidermis. The dermis is the layer of skin located beneath the outer epidermis and is composed of a dense network of collagen and elastin fibers that provide strength and elasticity. Within this layer, various structures such as blood vessels, lymphatic vessels, and nerve endings operate to deliver nutrients and oxygen to the epidermis, ensuring its health and functionality. This support system is crucial because the epidermis itself contains no blood vessels; it relies on the dermis for sustenance.

In addition to its role in nourishment, the dermis also houses important components like hair follicles, sebaceous (oil) glands, and sweat glands, which contribute to the overall health and function of the skin. The other options pertain to functions that, while relevant to the skin in a broader sense, are secondary to the principal role of the dermis in sustaining the epidermis.