Related Directory Categories
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- FMD - Foot and Mouth Disease (7)
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Mouth
From Wikipedia, the free encyclopedia
(Redirected from Perioral)
"Pie Hole" redirects here. For the fictional restaurant in the television series Pushing Daisies, see The Pie Hole.
The mouth, also known as the buccal cavity or the oral cavity, is the orifice through which an organism takes in food and water.
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Most animals have a complete digestive system, with a mouth at one end and an anus at the other. Which end forms first in ontogeny is a criterion used to classify animals into protostome and deuterostome.
The first space of the mouth is the mouth cavity, bounded laterally and in front by the alveolar arches (containing the teeth), and posteriorily by the isthmus of the fauces.
Generally the mouth is used to intake food, though it has other uses.
- In snakes, the mouth is used to inject venom through fangs
- Many animals lacking opposable thumbs use the mouth to hold objects, including food or young.
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