Sweat or sudoriferous glands include apocrine and merocrine glands. Apocrine glands are deep in the dermis and secrete through ducts on the hair follicle. They are found in the armpits and groin areas and produce an odor. Merocrine glands are widely distributed over the body and secrete through pores on the epithelial surface. Sebaceous glands are associated with the roots of hair just underlying the epidermis and produce an oil secretion of sebum into the hair follicle.