What layer of the skin contains accessory structures?
In simple terms – accessory structures are things like hair follicles and sweat glands. There are three main layers of skin, epidermis (outside), dermis (the main strength layer) and sub-dermis (which has the fat). The accessory structures lie in the dermis and hair follicles and sweat glands penetrate the epidermis. You don’t say what level you are at but this should help you to get started.