Biology II - The Integumentary System: Sebaceous Glands

Biology II

what do sebaceous glands secrete

sebum: and oily substance

where are they found

all over body except for thick skin of palms and soles

where are they small

body and limbs

where are they large

face, neck, and upperchest

where are they grown

hair follicles

what are the functions of sebum

soften and lubricate hair and skin, prevent water loss, bacterial action: kills bacteria