Fig. 1From: Amino acids and mammary gland development: nutritional implications for milk production and neonatal growthThe basic structure of the mammary gland. Mammary epithelial cells are responsible for the synthesis and release of milk by lactating animals. The alveoli are connected to a duct system through which the secreted milk flows into the teat canal, from which it can be removed by suckling or milkingBack to article page