Skin Glands

The skin contains sebaceous, sweat and scent glands. All the glands (including the mammary glands!) develop from the epidermis. The glands extend down to the dermis and subcutis. The excretory ducts of the sweat glands open onto the surface of the skin, those of the sebaceous and scent glands into the hair follicles. The secretions of the sebaceous and sweat glands form a protective film on the surface of the skin (acid-lipid barrier, acid protection barrier) which keeps the skin supple and protects it from fluid loss, superficial infections and harmful substances. The acid protection barrier contains antibiotics produced by the body itself. The sebum inhibits fungus growth.