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Oesophagus - Anatomy & Physiology (view source)
Revision as of 13:15, 6 September 2010
, 13:15, 6 September 2010Text replace - "[[Forestomach - Anatomy & Physiology|" to "[[Monogastric Stomach - Anatomy & Physiology|"
==Introduction==
==Introduction==
The oesophagus (or gullet) is a muscular tube which transports food from the [[Pharynx - Anatomy & Physiology|pharynx]] to the [[Forestomach - Anatomy & Physiology|stomach]]. A bolus of food is passed down the oesophagus by [http://en.wikipedia.org/wiki/Peristalsis| peristalsis].
The oesophagus (or gullet) is a muscular tube which transports food from the [[Pharynx - Anatomy & Physiology|pharynx]] to the [[Monogastric Stomach - Anatomy & Physiology|stomach]]. A bolus of food is passed down the oesophagus by [http://en.wikipedia.org/wiki/Peristalsis| peristalsis].
The oesophagus is divided into cevical, thoracic and abdominal sections.
The oesophagus is divided into cevical, thoracic and abdominal sections.
*Passes over [[Heart - Anatomy & Physiology|heart]] then through the oesophageal hiatus of the diaphragm
*Passes over [[Heart - Anatomy & Physiology|heart]] then through the oesophageal hiatus of the diaphragm
*Passes over the dorsal border of the [[Liver - Anatomy & Physiology|liver]] then joins the [[Forestomach - Anatomy & Physiology|stomach]] at the cardia
*Passes over the dorsal border of the [[Liver - Anatomy & Physiology|liver]] then joins the [[Monogastric Stomach - Anatomy & Physiology|stomach]] at the cardia
*The cervical section is accompanied by the common carotid artery, the vagosympathetic trunk and the recurrent laryngeal nerves
*The cervical section is accompanied by the common carotid artery, the vagosympathetic trunk and the recurrent laryngeal nerves
*Thick and strong sphincter of tunica muscularis in dogs and pigs
*Thick and strong sphincter of tunica muscularis in dogs and pigs
*Ruminants, horse and pig have stratified squamous epithelium continuing from oesophagus into [[Forestomach - Anatomy & Physiology|stomach]]. Carnivores have an abrupt transition to columnar epithelium.
*Ruminants, horse and pig have stratified squamous epithelium continuing from oesophagus into [[Monogastric Stomach - Anatomy & Physiology|stomach]]. Carnivores have an abrupt transition to columnar epithelium.
===Canine===
===Canine===