Mouth

A mouth, also referred to as the oral, is the body orifice through which many animals ingest food and vocalize. The body cavity immediately behind the mouth opening, known as the oral cavity (or ''' in Latin), is also the first part of the alimentary canal, which leads to the pharynx and the gullet. In tetrapod vertebrates, the mouth is bounded on the outside by the lips and cheeks — thus the oral cavity is also known as the buccal cavity (from Latin ', meaning "cheek") — and contains the tongue on the inside. Except for some groups like birds and lissamphibians, vertebrates usually have teeth

The lips are a horizontal pair of soft appendages attached to the jaws and are the most visible part of the mouth of many animals, including humans. Mammal lips are soft, movable and serve to facilitate the ingestion of food (e.g. suckling and gulping) and the articulation of sound and speech. Human lips are also a somatosensory organ, and can be an erogenous zone when used in kissing and other acts of intimacy.

thumb|Detail of the Mona Lisa, who is known for her smilethumb|A smiling child A smile is a facial expression formed primarily by flexing the muscles at the sides of the mouth. Some smiles include a contraction of the muscles at the corner of the eyes, an action known as a Duchenne smile. Among humans, a smile expresses delight, sociability, happiness, joy, or amusement. It is distinct from a similar but usually involuntary expression of anxiety known as a grimace. Although cross-cultural studies have shown that smiling is a means of communication throughout the world, there are large differe

part of human anatomy

ancient Egyptian Funerary Rite

Ingestion is the consumption of a substance by an organism. In animals, it normally is accomplished by taking in a substance through the mouth into the gastrointestinal tract, such as through eating or drinking. In single-celled organisms, ingestion takes place by absorbing a substance through the cell membrane.

thumb|Miniature from the Hours of Catherine of Cleves, Morgan Library & Museum, MS M.945, f. 107r A Hellmouth, or the jaws of Hell, is the entrance to Hell envisaged as the gaping mouth of a huge monster, an image that first appeared in Anglo-Saxon art, and then spread all over Europe. It remained very common in depictions of the Last Judgment and Harrowing of Hell until the end of the Middle Ages, and was still sometimes used during the Renaissance and after. It enjoyed something of a revival in polemical popular prints after the Protestant Reformation, when figures from the opposite side wou

mouthpart of insects and crustaceans

breathing method in humans

in arthropods, a pair of mouthparts used either for biting or cutting and holding food

one of two pairs of structures on arthropod heads

upper respiratory tract disease characterized by the unusual growth of the adenoid tonsil; has symptom snoring, has symptom hyponasality, has symptom otitis media with effusion, has symptom mouth breathing

prominent part of jaw bone that contains the tooth sockets

body piercing through the frenulum of either the upper or lower lip

Branch of the mandibular nerve

painting done with mouth and feet instead of hands, usually by an artist with a disability

a groove, ridge present in the palatine

body piercing through the uvula

topical route of administration by which drugs applied to the mouth diffuse through the oral mucosa and into the bloodstream

branch of the maxillary nerve

space or gap seen at the cervical embrasure, below the contact point of some teeth, when the interdental papilla does not fully enclose the space, leading to an aperture between adjacent teeth

part of the oral cavity of the human being