Mouth
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This article is about the anatomical structure. For other uses, see Mouth (disambiguation).
For the human body part, see Human mouth.
In animal anatomy, the mouth is the first portion of the alimentary canal that receives food. The adjectival form is "buccal" derived from Latin bucca (lit. "cheek"), hence "buccal cavity", "buccal nerve", "buccal artery", etc.[1]
Some animal phyla, including vertebrates, 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. In humans, the first space of the mouth is the mouth cavity, bounded laterally and anteriorly by the alveolar arches (containing the teeth), and posteriorly by the isthmus of the fauces.
References[edit source | edit]
- ^ "Mouth Definition". Dictionary Reference. The Free Dictionary. Retrieved 18 July 2013.
External links[edit source | edit]
Quotations related to Mouths at Wikiquote
The dictionary definition of mouth at Wiktionary
Media related to Mouths at Wikimedia Commons- oral+cavity at eMedicine Dictionary
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