title: Study of the function of the teat sphincter in lactating cows.
mesh_terms: D000818:Animals; D002417:Cattle; D005260:Female; D066298:In Vitro Techniques; D008321:Mammary Glands, Animal / Q000502:physiology*; D008893:Milk Ejection / Q000187:drug effects; D009119:Muscle Contraction / Q000187:drug effects; D009132:Muscles / Q000187:drug effects / Q000502:physiology*; D010121:Oxytocin / Q000494:pharmacology; D011247:Pregnancy
chemical_list: D010121:Oxytocin