Ace the Certified Lactation Consultant Exam 2026 – Nurture Your Career with Confidence!

Oxytocin plays a crucial role in the breastfeeding process primarily by stimulating milk ejection, also known as the milk let-down reflex. When the baby suckles at the breast, nerve endings in the nipple send signals to the mother's brain, prompting the release of oxytocin from the posterior pituitary gland. This hormone causes the muscles around the alveoli (the milk-producing cells in the breast) to contract, effectively squeezing the milk into the ducts and down toward the nipple where the baby can access it.

The significance of oxytocin in this process is vital for successful breastfeeding, as it ensures that milk is available to the infant when feeding occurs. Without adequate levels of oxytocin, the let-down reflex can be impaired, making it difficult for the baby to receive milk.

Other options involve important functions related to breastfeeding but do not specifically describe the direct role of oxytocin in the ejection of milk. While promoting milk production is primarily influenced by prolactin, and the absorption of fats is related to the composition of the milk itself rather than a direct action of oxytocin, the enhancement of maternal mood can also be attributed to oxytocin but is not its primary role during breastfeeding. Hence, the key role of oxyt