With a mouth with humans the body opening is marked, by which food is taken up (with animals: Muzzle).

Depending upon organisms and outside structure and/or function of the mouth also different designations are used, for example mouth tools, muzzle or bill. In South Germany the mouth is called also Fotzn.

Development biology

Animals possess usually a digesting system, to food by the mouth are taken up and by the after separated. Which of the two body openings is first formed in the Ontogenese, the classification of the animals determines as (Protostomia, mouth first) or new mouths (Deuterostomia, after first).

Some animals, like Cnidarien or Planaria, do not possess after; they separate the digesting remainders again by the mouth. Brachiopoden do not separate, them digest without remnants. Other animals, like the tapeworm, possess at all no mouth. Since they live in the digesting system of another animal, they receive the digested food from their landlord animal at their outer skin, where they take up them directly.

Mouth of humans

With humans the mouth and its parts form the front opening of the human digestive tract beside its digesting functions, for chewing - thus cutting up and Einspeicheln - serve it in addition the being correct formation and can for respiration be used. The lips express human feelings together with the mimischen musculature. The mouth area changes into the throat area.

zh-min-nan: khiun

Articles in category "Mouth"

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