The correct sequence of the arrangement of following parts in the mammary gland is 

The mammary glands have clusters of alveoli which secrete milk. It is stored in the cavities (lumens) of alveoli. The alveoli open into mammary tubules. The tubules of each lobe join to form a mammary duct. Several mammary ducts join to form a wider mammary ampulla which is connected to lactiferous duct through which milk is sucked out.