Certified Breastfeeding Counselor (CBC) Practice Exam 2025 - Free CBC Practice Questions and Study Guide

The hormone responsible for inducing Lobular-Alveolar development in the breast during the menstrual cycle is progesterone. While estrogen plays a crucial role in the development of breast tissue, it is primarily during the follicular phase of the menstrual cycle. The lobular-alveolar structures, which are essential for milk production, are primarily influenced by progesterone, especially in the luteal phase of the menstrual cycle.

Progesterone works in conjunction with estrogen to prepare the breast tissue for potential lactation. It stimulates the growth of secretory lobules and alveoli in the breast, which are necessary for milk production. This hormonal interplay is vital for preparing the breast for breastfeeding should pregnancy occur.

Prolactin, while important for milk production after birth, does not specifically induce the lobular-alveolar development in the context of the menstrual cycle. Oxytocin has a role in milk ejection during breastfeeding but does not influence the structural changes in the breast during menstruation.