Lactation

Lactation is the secretion of milk from the mammary gland during breastfeeding. During pregnancy, due to the increased level of estrogen, progesterone and prolactin , the tuboalveolar system of the mammary gland develops, which proliferates significantly and secretes colostrum. The production of breast milk after birth begins 2-3 days after birth and is stimulated by prolactin from the adenohypophysis, expulsion (= ejection) of milk by oxytocin (causes the contraction of the cells of the excretory system). Each breastfeeding increases the production of prolactin and oxytocin.

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