Exocrine glands based on their mode of secretion, the structure of glands, the shape of ducts, and the nature of particles they release can be classified. The merocrine secretions are the most common types of exocrine secretion. These secretions are enveloped in the vesicles, which move to the apical surface of cells, wherein contents by exocytosis are released.
For instance, the liquid mucous which contains the mucin glycoprotein – lubricant offering several pathogen protections is a merocrine secretion. Similarly, another example is the eccrine glands, which secrete and produce sweat.
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