← Hypothalamus and Pituitary Gland Export Options Alphabetize Word-Def Delimiter Tab Comma Custom Def-Word Delimiter New Line Semicolon Custom Data Copy and paste the text below. It is read-only. Select All prolactin Works with other hormones to initiate secretion of milk by the mammary glands. oxytocin Causes uterine contractions during labor and stimulates the mammary glands. vasopressin Constricts blood vessels causing increased blood pressure and permits kidneys to reabsorb water.