skin glands; 2 types; merocrine; coil deep in dermis, duct in dermis, pore at surface, respond to elevated temp, no odor secreation, function throughplut life, not associated with hair follicles, locations: forehead, neck, back secretion: 99% water
apocrine: responds to stress, emotions, odor secrestion, begin to function at puberty and continue through life, associated with hair follicles, location: armpits, groin, secrestion: oil an cellular debris.