| Mouth | |
|---|---|
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| Head and neck. | |
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| A human mouth, closed. | |
| Latin | cavitas oris |
| MeSH | Oral+cavity |
| Dorlands/Elsevier | c_16/12220513 |
The mouth (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. Latin ( lingua Latīna, laˈtiːna is an Italic language, historically spoken in Latium and Ancient Rome. Medical Subject Headings ( MeSH) is a huge Controlled vocabulary (or metadata system for the purpose of indexing journal articles and books Elsevier, the world's largest Publisher of Medical and Scientific literature, forms part of the Reed Elsevier group For the band see Saliva (band; for the village in Azerbaijan see Səliva. [1]
Contents |
In humans
Mouth cavity
The first space of the mouth is the mouth cavity, bounded laterally and in front by the alveolar arches (containing the teeth), and posteriorily by the isthmus of the fauces. The isthmus of the fauces is the limit between the Mouth cavity proper and the Pharynx, marked by a constricted aperture The oral cavity is also known as the mouth which it swallows food and drinks and goes down to the person's stomach.
Function
The mouth plays an important role in speech (it is part of the vocal apparatus), facial expression, kissing, eating, drinking (especially with a straw), breathing. Speech refers to the processes associated with the production and perception of Sounds used in Spoken language. Vocal apparatus or vocal organs is a term used in Phonetics to designate all parts of Human anatomy that can be used to produce speech. A facial expression results from one or more motions or positions of the Muscles of the Face. A kiss is the touching of one person's lips to another place which is used as an expression of Affection, Respect, Greeting, Farewell In general terms eating (formally ingestion) is the process of consuming Food to provide for the Nutritional needs of an Animal, particularly A drink, or beverage, is a Liquid specifically prepared for Human consumption Breathing takes Oxygen in and Carbon dioxide out of the body Aerobic Organisms require oxygen to create energy via respiration, in
Infants are born with a sucking reflex, by which they instinctively know to suck for nourishment using their lips and jaw. Suction is the flow of a fluid into a partial Vacuum, or region of low pressure Instinct is the inherent disposition of a living Organism toward a particular Behavior. The jaw is either of the two opposable structures forming or near the entrance to the Mouth.
Cultural aspects
According to general etiquette, the mouth is kept closed, especially when chewing. Etiquette is a code that governs the expectations of Social behavior, according to the contemporary conventional norm within a Society,
Lips can be adorned with lipstick or lip gloss, although in most cultures this is typically only practised by females. Lipstick is a cosmetic product containing pigments oils waxes and emollients that applies color and texture to the lips. Lip gloss is a cosmetic product used primarily to give lips a mildly glossy lustre and sometimes subtle color
Piercings have been made popular by the younger generations. Body piercing is the practice of puncturing or cutting a part of the Human body, creating an opening in which jewelry may be worn Lip, tongue, and the 'Monroe' (Monroe piercing is a stud piercing placed on one's face in the same area as Marilyn Monroe's well known and prominent birthmark was) are piercings seen in many varieties. A Monroe piercing is placed off-centre above the upper lip and is meant to resemble a beauty spot it is also known as a 'Madonna' or 'Crawford' Piercings of any sort besides two subtle earrings are seen as rebellious to the norm in many western cultures.
Development
The philtrum is the vertical groove in the upper lip, formed where the nasomedial and maxillary processes meet during embryo development. The philtrum ( Greek philtron (φιλτρον from philein (φιλειν "to love to kiss" also known as the infranasal depression The medial nasal prominence ( nasomedial) is an embryological structure that forms the Upper lip and Nose. An embryo (from Greek:, plural, lit "that which grows" from en- "in" + bryein "to swell be full" is a multicellular Embryogenesis is the process by which the Embryo is formed and develops When these processes fail to fuse fully, a hare lip and/or cleft palate can result. Cleft lip (cheiloschisis and cleft palate (palatoschisis which can also occur together as cleft lip and palate are variations of a type of clefting Congenital Cleft lip (cheiloschisis and cleft palate (palatoschisis which can also occur together as cleft lip and palate are variations of a type of clefting Congenital
The nasolabial folds are the deep creases of tissue that extend from the nose to the sides of the mouth. One of the first signs of age on the human face is the increase in prominence of the nasolabial folds.
In animals
Some animals, including vertebrates, have a complete digestive system, with a mouth at one end and an anus at the other. Vertebrates are members of the Subphylum Vertebrata, Chordates with backbones or spinal columns The grouping sometimes includes Digestion is the breaking down of chemicals in the body into a form that can be absorbed Which end forms first in ontogeny is a criterion used to classify animals into protostome and deuterostome. Ontogeny, as opposed to Phylogeny, refers to the history of an organism from birth as opposed to its genetic makeup Protostomia (from the Greek: mouth first) are a Taxon of Animals Together with the Deuterostomes and a few smaller phyla Deuterostomes (taxonomic term Deuterostomia; from the Greek "second mouth" are a superphylum of Animals They are a subtaxon of the The first space of the mouth is the mouth cavity, bounded laterally and in front by the alveolar arches (containing the teeth), and posteriorily by the isthmus of the fauces. [2]
See also
- Head and neck anatomy
- Mouth breathing
- List of oral health and dental topics
- List of basic dentistry topics
Additional images
 Sagittal section of nose mouth, pharynx, and larynx. Head and neck anatomy focuses on the structures of the Head and Neck of the human body including the brain bones muscles blood vessels nerves glands nose mouth Mouth breathing refers to the state of Inhaling and exhaling through the Mouth. Good oral health is the absence of disease disorder and injury from the Mouth, especially from the teeth and gums. |
 Male human mouth |
References
- ^ Maton, Anthea; Jean Hopkins, Charles William McLaughlin, Susan Johnson, Maryanna Quon Warner, David LaHart, Jill D. Wright (1993). Human Biology and Health. Englewood Cliffs, New Jersey, USA: Prentice Hall. ISBN 0-13-981176-1.
- ^ Maton, Anthea; Jean Hopkins, Charles William McLaughlin, Susan Johnson, Maryanna Quon Warner, David LaHart, Jill D. Wright (1993). Human Biology and Health. Englewood Cliffs, New Jersey, USA: Prentice Hall. ISBN 0-13-981176-1.
External links
- oral+cavity at eMedicine Dictionary
Dictionary
mouth
-noun
- (anatomy) The opening of a creature through which food is ingested.
- The end of a river out of which water flows.
- An outlet, aperture or orifice.
- (slang) A loud or overly talkative person.
-verb
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