Answer
Both sebaceous and salivary glands are exocrine, as distinct from the endocrine type. However, because of differences in methods of secretion, sebaceous glands are classified as holocrine glands, but salivary glands are merocrine glands
Work Step by Step
Exocrine glands, for example salivary typically have ducts. Endocrine glands are ductless and secrete into the blood . The pancreas is an anomaly since it is both an endocrine and an exocrine gland.
In the merocrine salivary glands secretory vesicles form in the golgi body , migrate to the plasma membrane and secrete by exocytosis,
In the halocrine, sebaceous glands the cell secretes a product which accumulates in the cytosol. As the cell matures, the whole cell-- including the plasma membrane and intracellular membranes-- becomes the secretory product. In this method of secretion, the whole cell ruptures to release its contents.
