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| | Scent glands (from artiodactyl) -- Encyclopædia Britannica |
 | | Preorbital glands, immediately in front of the eyes, are present in the giant forest hog (Hylochoerus meinertzhageni), in all cervids except the roe deer, and, among the bovids, in duikers, many neotragines, gazelles and their allies, and the hartebeest group. |
 | | Typically, a gland consists of either cuboidal or columnar epithelium resting on a basement membrane and is surrounded by a plexus, or meshwork, of blood vessels. |
 | | Glands are tissues that produce substances that are necessary for the functioning of other tissues or organs. |
| www.britannica.com /eb/article?tocId=51688 (799 words) |
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