In animal anatomy, the mouth is the first portion of the alimentary canal that receives food.
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. The first space of the mouth is the mouth cavity, bounded laterally and in front by the alveolar arches (containing the teeth), and posteriorly by the isthmus of the fauces.
Read more about Mouth: In Human Anatomy
Famous quotes containing the word mouth:
“Slavery is founded in the selfishness of man’s nature—opposition to it, is [in?] his love of justice.... Repeal the Missouri compromise—repeal all compromises—repeal the declaration of independence—repeal all past history, you still can not repeal human nature. It still will be the abundance of man’s heart, that slavery extension is wrong; and out of the abundance of his heart, his mouth will continue to speak.”
—Abraham Lincoln (1809–1865)
“Man doth not live by bread only, but by every word that proceedeth out of the mouth of the Lord doth man live.”
—Bible: Hebrew Deuteronomy, 8:3.
Jesus recalls these words in Matthew 4:4.
“A child of three cannot raise its chubby fist to its mouth to remove a piece of carpet which it is through eating, without being made the subject of a psychological seminar of child-welfare experts, and written up, along with five hundred other children of three who have put their hands to their mouths for the same reason.”
—Robert Benchley (1889–1945)