body fluid secretion lactation http://purl.bioontology.org/ontology/MESH/D007774 http://purl.bioontology.org/ontology/SNOMEDCT/63158009 http://purl.obolibrary.org/obo/GO_0007595 https://en.wikipedia.org/wiki/Lactation https://www.wikidata.org/wiki/Q719426 E1.0.2.5.0.0.4 The processes of milk secretion by the maternal mammary glands after parturition. The proliferation of the mammary glandular tissue, milk synthesis, and milk expulsion or let down are regulated by the interactions of several hormones including estradiol; progesterone; prolactin; and oxytocin. The regulated release of milk from the mammary glands and the period of time that a mother lactates to feed her young. lactate lactated lactates lactating milk secretion breast function BDSM And Kink Terminology: A To Z