Is the primary peristaltic contraction of the canine esophagus bolus-dependent?
D000818:Animals; D003679:Deglutition; D004285:Dogs; D004576:Electromyography; D004947:Esophagus / Q000502:physiology*; D005260:Female; D005502:Food; D005769:Gastrointestinal Motility; D007583:Jejunum / Q000502:physiology; D008297:Male; D009119:Muscle Contraction