The epidermis is the avascular layer of the skin. This means it does not contain any blood vessels.
The epidermis is the outermost layer of the skin and is responsible for protecting the body from the environment. It is made up of keratinocytes, which produce keratin, a tough protein that helps to make the skin waterproof and resistant to abrasion.
The lack of blood vessels in the epidermis means that it must rely on the underlying dermis for its nutrients and oxygen. The dermis is a vascular layer, meaning it contains blood vessels, and it provides the epidermis with the necessary resources to function properly.
