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Trace the pathway food follows from ingestion into the mouth through release into the stomach in this section, you will examine the anatomy and functions of the three main organs of the upper alimentary canalthe mouth, pharynx, and esophagusas well as three associated accessory organsthe tongue, salivary glands, and teeth. while the answer stomach is correct according to the choice given a crucial part that gets overlooked at the end of the oesophagus and the beginning of the (entrance to the) stomach is the cardiac sphincter at the upper end of the stomach. Your tongue, teeth and saliva will turn your food into a soft, round mass that will make it simple to swallow. The food is chewed in the mouth and saliva is mixed with this food. Saliva is made up of an alkaline electrolyte solution that moistens the food, mucus that serves as a lubricant, amylase, an enzyme that initiates the digestion of starch, lipase, an enzyme that begins the digestion of fat, and protease, which digests protean, and. when swallowing, food passes from the mouth, to the pharynx, into the esophagus, and finally the stomach. Esophagus stage - the upper oesophageal sphincter relaxes to let food past, after which various striated constrictor muscles of the pharynx as well as peristalsis and relaxation of the lower esophageal sphincter sequentially push the bolus of food through the esophagus into the stomach. Esophagus, also spelled oesophagus, relatively straight muscular tube through which food passes from the pharynx to the stomach. The esophagus can contract or expand to allow for the passage of food. Anatomically, it lies behind the trachea and heart and in front of the spinal column it passes through the muscular diaphragm before entering the.