Secretion

Separation of semi-liquid or liquid products from glands, organs, cell dressings and wounds.

This can be done directly or through outward ducts or in body cavities of other organs.

One distinguishes after the secretion direction the exokrine (e.g. sebaceous glandn or sweat glandn on body surfaces) and endocrine secretion. At the endocrine secretion, the delivery of mostly highly effective regulatory substances from individual cell, cell groups or special organs to the blood or in intercellular spaces takes place, with the endocrine secretion still being transferred to the paracrine, neurocrine and autocrine. delivery is subdivided.

Nach dem Sekretionsmechanismus (der Ablösung des Sekrets aus der Zelle) wird in apokrin, merokrin (ekkrin) und holokrin unterschieden.

https://de.wikipedia.org/wiki/Sekretion _{(Wikipedia CC-by-sa-3.0)}