Reinterpreting the fossil record on jaws

Scientists use the fossil record to make judgments on the physiology and behavior of species. But are those interpretations correct? New research from a team of researchers led by Matthew Ravosa, professor of biology and ...

Wapiti whistles sound like Ringwraith shrieks

For a majestic animal that looks equally at home as the monarch of the glen or astride the great American Plains, the wapiti's call is somewhat disconcerting. Sounding more like the shrieking cries of a Lord of the Rings ...

Cat dentals fill you with dread?

A survey published this year found that over 50% of final year veterinary students in the UK do not feel confident either in discussing orodental problems with clients or in performing a detailed examination of the oral cavity ...

Iceman Otzi had bad teeth

For the first time, researchers from the Centre for Evolutionary Medicine at the University of Zurich together with colleagues abroad have been able to provide evidence of periodontitis, tooth decay and accident-related dental ...

Could there be more than lunch lurking on your retainer?

Insufficient cleaning could allow build-up of microbes on orthodontic retainers, researchers at the UCL Eastman Dental Institute have found. Dr Jonathan Pratten and colleagues looked at the types of microbes which live on ...

A worm bites off enough to chew (w/ Video)

Dramatic scenes are played out under Ralf Sommer's microscope: his research object, the roundworm Pristionchus pacificus, bites another worm, tears open a hole in its side and devours the oozing contents. The squirming victim ...

Mouth

The mouth, buccal cavity, or oral cavity is the first portion of the alimentary canal that receives food and begins digestion by mechanically breaking up the solid food particles into smaller pieces and mixing them with saliva. The oral mucosa is the mucous membrane epithelium lining the inside of the mouth.

In addition to its primary role as the beginning of the digestive system, in humans the mouth also plays a significant role in communication. While primary aspects of the voice are produced in the throat, the tongue, lips, and jaw are also needed to produce the range of sounds included in human language. Another non-digestive function of the mouth is its role in secondary social and/or sexual activity, such as kissing. The physical appearance of the mouth and lips play a part in defining sexual attractiveness.

The mouth is normally moist, and is lined with a mucous membrane. The lips mark the transition from mucous membrane to skin, which covers most of the body.

This text uses material from Wikipedia, licensed under CC BY-SA