Esophagus

Diagram of thorax showing the esophagus and surrounding structures.

The esophagus is constricted in four places.

The esophagus (American English) or oesophagus (British English), commonly known as the food pipe or gullet, is an organ in vertebrates which consists of a fibromuscular tube through which food passes, aided by peristaltic contractions, from the pharynx to the stomach. In humans, the esophagus is usually 18–25 centimetres long. During swallowing the epiglottis tilts backwards to prevent food from going down the larynx and lungs. The esophagus travels behind the trachea and heart, passes through the diaphragm and empties into the uppermost region of the stomach. The word esophagus is the Greek word for gullet.

单词	Pharyngoesophageal sphincter
释义	Pharyngoesophageal sphincter 英语百科 Esophagus The esophagus (American English) or oesophagus (British English), commonly known as the food pipe or gullet, is an organ in vertebrates which consists of a fibromuscular tube through which food passes, aided by peristaltic contractions, from the pharynx to the stomach. In humans, the esophagus is usually 18–25 centimetres long. During swallowing the epiglottis tilts backwards to prevent food from going down the larynx and lungs. The esophagus travels behind the trachea and heart, passes through the diaphragm and empties into the uppermost region of the stomach. The word esophagus is the Greek word for gullet.
随便看	bring into play the initiative of the central authorities, the local authorities, the enterprises and the workers bring into practice bring into production bring into prominence bring into puoduction bring into question bring into relief bring into requisition bring into ridicule bring into service bring into sight bring into step bring into stop bring into the open bring... into the orbit of bring ... into the orbit of bring into the world bring into use bring into view bring into vogne bring into vogue Bring It bring it away Bring It On Bring It On!

Pharyngoesophageal sphincter

Esophagus