Statement A : Mammary glands are apocrine glands.
Statement B : The apical part containing secretory granules break down and leaves as a secretion.

Based on the mode of secretion, the glands are of three types : merocrine, apocrine and holocrine. Mammary glands that are present in mammals to feed the young ones with milk are the example of apocrine glands. In apocrine glands, the secretion accumulates as secretory granules in the apical part of the cell. This part later breaks down and leaves as a secretion.