Physiology The mammary gland is an eostrogen responsive organ. Which statement about estrogen is NOT true about eostrogen or mamary gland? A Estrogen is produced primarily by the ovary B Estrogen is produced in the placenta C Estrogen promotes growth of the duct system D Estrogen promotes growth of the lobules and acini 💡 Explanation The mammary gland is an eostrogen responsive organ. Which statement about estrogen is NOT true about eostrogen or mamary gland? ✓ Correct Answer: D. Estrogen promotes growth of the lobules and acini