PHYSIOLOGICAL RECALL OF THE MAMMARY-GLAND DEVELOPMENT DURING PREGNANCY

The mammary gland underwent during pregnancy morphological, histologic al and physiological modifications that ensure the lactation in the po st-partum, On the morpho-histological side, the epithelial growth and the milk synthesis during pregnancy allow secondary the lactation, The physiological modifications, beside the endocrines factors such as pr olactin, estrogens, progesterone or growth hormone, lead to an auto-pa racrines interactions involving the growth factors and the molecules s ynthetized by the extracellular matrix.