<P> Sebaceous glands are microscopic exocrine glands in the skin that secrete an oily or waxy matter , called sebum , to lubricate and waterproof the skin and hair of mammals . In humans , they occur in the greatest number on the face and scalp , but also on all parts of the skin except the palms of the hands and soles of the feet . The type of secretion of the sebaceous glands is referred to as holocrine . In the eyelids , meibomian glands , also called tarsal glands , are a type of sebaceous gland that secrete a special type of sebum into tears . Fordyce spots are ectopic ( misplaced ) sebaceous glands found usually on the lips , gums and inner cheeks , and genitals . Areolar glands surround the female nipples . </P>
<P> Sebaceous glands are microscopic exocrine glands in the skin that secrete an oily or waxy matter , called sebum , to lubricate and waterproof the skin and hair of mammals . In humans , they occur in the greatest number on the face and scalp , but also on all parts of the skin except the palms of the hands and soles of the feet . The type of secretion of the sebaceous glands is referred to as holocrine . In the eyelids , meibomian glands , also called tarsal glands , are a type of sebaceous gland that secrete a special type of sebum into tears . Fordyce spots are ectopic ( misplaced ) sebaceous glands found usually on the lips , gums and inner cheeks , and genitals . Areolar glands surround the female nipples . </P>
which glands secrete the oily substance that lubricates the skin
which glands secrete the oily substance that lubricates the skin
Sebaceous glands
Sebaceous glands