Editing Gland (section)

===Exocrine glands=== 
{{Main|Exocrine gland}}
[[Exocrine gland]]s secrete their products through a [[Duct (anatomy)|duct]] onto an outer or inner surface of the body, such as the skin or the [[human gastrointestinal tract|gastrointestinal tract]]. Secretion is directly onto the [[apical membrane|apical]] surface. The glands in this group can be divided into three groups:
* [[Merocrine]] glands – cells secrete their substances by [[exocytosis]]. (e.g. mucous and serous glands; also called "[[eccrine]]", e.g. major sweat glands of humans, goblet cells, salivary gland, tear gland and intestinal glands)
* [[Apocrine]] glands – a portion of the secreting [[cell (biology)|cell]]'s body is lost during secretion. The term ''Apocrine gland'' is often used to refer to the [[sweating|apocrine sweat glands]], however it is thought that apocrine [[sweat gland]]s may not be true apocrine glands as they may not use the apocrine method of secretion. (e.g. mammary gland, sweat gland of arm pit, pubic region, skin around anus, lips and nipples)
* [[Holocrine]] glands – the entire cell disintegrates to secrete its substances. (e.g. [[sebaceous gland]]s: [[meibomian gland|meibomian]] and [[Gland of Zeis|zeis gland]]s)

Exocrine glands can further be categorized by their product:
* [[Serous]] glands secrete a watery, often protein-rich, fluid-like product, e.g. sweat glands.
* [[mucus|Mucous]] glands secrete a viscous product, rich in [[carbohydrates]] (such as glycoproteins), e.g. [[goblet cell]]s.
* [[Sebaceous]] glands secrete a [[lipid]] product. These glands are also known as oil glands, e.g. [[Fordyce spots]] and [[meibomian gland]]s.