Cambios

==Introduction==

==Introduction==

Eructation is the release of gases from the stomach through the [[Oesophagus - Anatomy & Physiology|oesophagus]]. Carbon dioxide, methane, hydrogen and other volatile products are produced in the [[Rumen - Anatomy & Physiology|rumen]] through the fermentation of food by microorganisms and most of these gases are then released through eructation.  

Eructation is the release of gases from the stomach through the [[Oesophagus - Anatomía & Fisiología|oesophagus]]. Carbon dioxide, methane, hydrogen and other volatile products are produced in the [[Rumen - Anatomía & Fisiología|rumen]] through the fermentation of food by microorganisms and most of these gases are then released through eructation.  

Not all of the carbon dioxide produced in the [[Rumen - Anatomy & Physiology|rumen]] is released through eructation. Some of the gas is absorbed directly over the [[Rumen - Anatomy & Physiology|rumen]] wall. If gas release does not occur, or gas elimination does not equal gas production, a condition called [[Bloat|bloat]] will arise.

Not all of the carbon dioxide produced in the [[Rumen - Anatomía & Fisiología|rumen]] is released through eructation. Some of the gas is absorbed directly over the [[Rumen - Anatomía & Fisiología|rumen]] wall. If gas release does not occur, or gas elimination does not equal gas production, a condition called [[Bloat|bloat]] will arise.

==Process==

==Proceso==

[[Image:Diagram of eructation.jpg|thumb|right|250px|Diagram of Eructation - Copyright RVC 2008]]

[[Image:Diagram of eructation.jpg|thumb|right|250px|Diagram of Eructation - Copyright RVC 2008]]

The process of eructation includes [[Rumen - Anatomy & Physiology#Ruminoreticular contraction|ruminal contractions]] (no reticular contribution). Before eructation can occur the cardia must be cleared of liquid ingesta, as the cardia is reflexly closed on contact with the liquid [[Rumen - Anatomy & Physiology|rumen]] contents. Contractions start in the ventral sac and spread to the dorsal sac. Contractions spread caudally to cranially over the [[Rumen - Anatomy & Physiology|rumen]]. Ruminal gas is forced towards the cranial cardiac area where it is aspirated into the [[Oesophagus - Anatomy & Physiology|oesophagus]]. The gases are moved orally by an antiperistaltic wave passing through the relaxed '''pharyngoesophageal sphincter''' into the [[Pharynx - Anatomy & Physiology|pharynx]]. Some of the eructated gas passes to the lungs, whilst the rest is released from the [[Oral Cavity Overview - Anatomy & Physiology|oral cavity]].

The process of eructation includes [[Rumen - Anatomía & Fisiología#Ruminoreticular contraction|ruminal contractions]] (no reticular contribution). Before eructation can occur the cardia must be cleared of liquid ingesta, as the cardia is reflexly closed on contact with the liquid [[Rumen - Anatomía & Fisiología|rumen]] contents. Contractions start in the ventral sac and spread to the dorsal sac. Contractions spread caudally to cranially over the [[Rumen - Anatomía & Fisiología|rumen]]. Ruminal gas is forced towards the cranial cardiac area where it is aspirated into the [[Oesophagus - Anatomía & Fisiología|oesophagus]]. The gases are moved orally by an antiperistaltic wave passing through the relaxed '''pharyngoesophageal sphincter''' into the [[Faringe - Anatomía & Fisiología|faringe]]. Some of the eructated gas passes to the lungs, whilst the rest is released from the [[Cavidad Oral - Resumen - Anatomía & Fisiología|cavidad oral]].

==Gas Volume==

==Gas Volume==

[[Category:Stomach - Anatomy & Physiology]]

[[Categorgía:Stomach - Anatomía & Fisiología]]