Final answer:
Chyme is the pulpy, acidic fluid consisting of gastric juices and partially digested food that passes from the stomach to the small intestine. It is further digested in the duodenum with the help of digestive juices like bile and pancreatic juice.
Step-by-step explanation:
The pulpy, acidic fluid passing from the stomach to the small intestine, consisting of gastric juices and partially digested food, is known as Chyme. Chyme is produced in the stomach and then moves to the duodenum, which is the first part of the small intestine. The duodenum is separated from the stomach by the pyloric sphincter which opens to allow chyme to move from the stomach to the duodenum. Once in the duodenum, chyme is mixed with digestive juices like bile and pancreatic juice that further aid in the digestion of food.
Bile is produced in the liver, stored in the gallbladder, and aids in the emulsification of lipids, making them more accessible to digestive enzymes. This is not chyme, which is already a partially digested mixture of food and gastric juices.
Pancreatic juice, rich in bicarbonate and several digestive enzymes, mixes with chyme in the duodenum. It neutralizes the acidity of chyme and helps break down starches, disaccharides, proteins, and fats. Again, this is not chyme but it is involved in its further digestion.
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