Skin glands do not include hair follicles, as they are not classified as glands. Instead, skin glands typically refer to structures such as sweat glands (eccrine and apocrine) and sebaceous glands, which secrete sweat and oil, respectively. Hair follicles are responsible for hair growth and are associated with sebaceous glands but do not function as glands themselves.
The glands of the skin, or the integumentary glands, include apocrine and eccrine sweat glands, and sebaceous glands that secrete sebum, or skin oil.
Hair, skin, nails and associated glands
Examples of holocrine glands include the sebaceous glands of the skin and the meibomian glands of the eyelid. Source: http://en.wikipedia.org/wiki/Holocrine
Sweat glands belong in your skin. In one square inch of skin their are 500 sweat glands. The main jobs of sweat include reducing your body's temperature through evaporation, providing a barrier from harmful bacteria, and keeping your skin from drying out.
Mucous glands
Accessory glands associated with the cutaneous membrane include sweat glands and sebaceous glands. Sweat glands produce sweat, which helps regulate body temperature, while sebaceous glands secrete sebum to lubricate and waterproof the skin.
Exocrine glands are glands that secrete their products to the outside of the body. Examples include sweat glands, which secrete a hypotonic salt solution to the surface of the skin; portions of the pancreas, which secrete pancreatic juice containing digestive enzymes and bicarbonate into the small intestine; and salivary glands, which secrete saliva into the mouth.
sebacous glands
Sebaceous glands secrete oil to protect the skin. Sweat glands secrete watery perspiration to excrete wastes and cool the body.
Sebaceous glands produce oil from the Dermis layer of the skin. The number of these glands in the skin is hard to calculate.
Exocrine glands in the dermis primarily include sebaceous glands, sweat glands, and ceruminous glands. Sebaceous glands secrete sebum, an oily substance that helps lubricate and protect the skin and hair. Sweat glands, which include eccrine and apocrine glands, play a crucial role in thermoregulation and waste excretion by producing sweat. Ceruminous glands produce earwax, which helps protect the ear canal from debris and microorganisms.
Most glands do not have ducts. The ones that do are called exocrine glands; mainly these just are sweat glands, oils glands, digestive glands, and sexaul reproducitive glands.