Stop

See also: Mouth (homonymy)

The stops (still called oral cavity or oral cavity ) is the opening by which the food of a Animal enters its body. The word Gueule is also used, but with a familiar direction when which it is question of an human being.

This Organe is usually located at the level of the head. The Planar S, in particular, make exception since their mouth is located in the middle of their belly.

The majority of the animals have a digestive system complete, with a mouth with an end and a Anus with the other. According to the end which is formed in first in Embryologie, one can classify the animals in Protostomien S and Deutérostomien S. Some animals do not have an anus: they excrete their waste by the mouth. It is the case of the Cnidaire S and the Planaire S, as well as Brachiopode S, which have a very effective digestive system (the tube being rolled up around the Estomac during digestion).

Some animals, like the Cestode S, do not even have a mouth. They live inside the digestive system of their host and thus do not need to have one of them.

In many animals, the mouth has Dent S to chew food or to inject poison. Moreover, it is often equipped with a language which is used with the chewing, phonation and swallowing. At the Arthropod S, there are modified external members; at the Vertebrate S Gnathostome S, they are interns.

The structures corneas covering the mouth of a bird compose its Bec.

stop

The human mouth

The human oral cavity represents the first segment of the digestive tract it is divided into two parts: the hall and the oral cavity itself which are separated by the dental arch The hall lies between the teeth and the inner face of the cheeks and the lips The oral cavity itself is circumscribed by the teeth ahead and on with dimensions ones and by the isthmus of the gosier (who separates the oral cavity from the oropharynx) behind

Limits of the oral cavity: it is limited: In top by the osseous and membranous palate In bottom by the language and the oral floor Laterally by the cheeks Ahead by the lips Behind by the isthmus of the gosier

It is made up of 28 teeth during the childhood then of 32 at the adulthood. It is covered by Lèvre S higher and lower. They play a big role in the Parole, the facial Expression, the action to embrace, of to drink, etc

The babies are born with a reflex from Succion.

The Stomatologie is the medicine of the diseases of the mouth in particular the Candidose (moulds).

The nasal Sigmatisme is due to a positioning of the language which makes impossible the passage of the air by the oral cavity.

Others

As it is part of the particularly sensitive and wet body, it is often the seat of the Torture to electricity, known as gegene .

waste-gas main S reject by the mouth the water which they receive by the ears. -->

See too

Anatomy
Mérycisme
cervical Collar (intubation)

External bonds

See a diagram detailed on the oral cavity

Simple: Mouth Zh-min-nan: Chhùi-khiuⁿ Zh-yue: 口

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