Description: a fluid product released through the cell membrane by exoctyosis.
Example: salivary glands, pancreatic glands, sweat glands of the skin
Description: cellular product and portions of the free ends of glandular cells pinched off during secretion
Example: mammary glands, ceruminous glands lining the external ear canal
Description: entire cells filled with secretory products disintegrate
Example: sebaceous glands of the skin