Final answer:
The pancreas produces pancreatic juice rich in bicarbonate to neutralize the acidic chyme from the stomach, supporting digestion in the small intestine.
Step-by-step explanation:
The organ responsible for releasing a 'juice' that neutralizes chyme is the pancreas. The pancreas secretes pancreatic juice, which contains high levels of bicarbonate, an alkali that neutralizes the highly acidic chyme coming from the stomach. In addition, the pancreatic juice contains digestive enzymes that help in breaking down proteins and carbohydrates.
The role of the pancreas is crucial because it maintains a neutral environment necessary for the enzymes in the duodenum to function properly. The process is regulated by the hormone secretin, which stimulates the pancreas to produce the bicarbonate-rich alkaline solution. This neutralization is a key part of the digestive process, allowing for efficient digestion and absorption of nutrients in the small intestine.