TtheSalivaryGlands（涎腺）andtheHypopharyngealGlands（咽腺）ofWorkerHoneyBees
Topleftarethesalivaryglands（涎腺）andtheotherthehypopharyngealglands（咽腺）ofworkerhoneybees.Botharelocatedinsidethehead.Salivaryglandsproducesecretationsusedtomixwithwax,whilethehypopharyngealglandsproduceasecretionrichinproteinthatisaddedtotheroyaljellyorworkerjelly(innurses),orproduceinvertase,anenzymethatbreaksdownsucroseintofructoseandglucose(inforagers).