About 10 inches long, it passes through the neck & goes past the heart, through the diaphragm & into the stomach
... 
food pass into the stomach and closes to keep the food from going back into .... A 
vestigial organ (an organ that had a purpose in the past but is now... [DOC] [TLE] Anatomy & Function of the Esophagus, Stomach & Intestines in Dogs [PAR] Anatomy & Function of the Esophagus, Stomach & Intestines in Dogs ... straight 
path through the neck and chest, passing near the heart through the diaphragm 
muscle and ...