MICROANATOMY

Detailed explanation-1: -Milk production occurs within the alveoli, which are grape-like clusters of cells within the breast. Once the milk is made, it is squeezed out through the alveoli into the milk ducts, which resemble highways.

Detailed explanation-2: -This is called lactogenesis I. Colostrum is a thick, yellowish-white fluid which can be expressed from the breast by the third trimester. Milk secretion is suppressed during pregnancy by estrogen and progesterone. Colostrum has more protein and fewer carbohydrates and fat than mature breast milk.