Oesophagus example sentences

The oesophagus and the trachea (wind pipe) open into the pharynx.The food then passes into the pharynx and enters the oesophagus in the form of bolus, which is further carried down through the oesophagus by peristalsis into the stomach.The wall of alimentary canal from oesophagus to rectum possesses four layers (Figureure 1 4) namely serosa, muscularis, sub-mucosa and mucosa.The alimentary canal consists of the mouth, buccal cavity, pharynx, oesophagus, stomach, small intestine, large intestine, rectum and the anus.The bolus is then conveyed into the pharynx and then into the oesophagus by swallowing or deglutition.The oesophagus is a thin, long tube which extends posteriorly passing through the neck, thorax and diaphragm and leads to a 'J' shaped bag like structure called stomach.The bolus further passes down through the oesophagus by successive waves of muscular contractions called peristalsis.A muscular sphincter (gastro-oesophageal) regulates the opening of oesophagus into the stomach.The stomach, located in the upper left portion of the abdominal cavity, has three major parts – a cardiac portion into which the oesophagus opens, a fundic region and a pyloric portion which opens into the first part of small intestine (Figureure 1 3).