What is chyme ? Which gases …
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Meghna Thapar 5 years, 10 months ago
Chyme is the semi-fluid mass of partly digested food that is expelled by the stomach, through the pyloric valve, into the duodenum. Gas in the stomach contains approximately 15 to 16 percent oxygen and 5 to 9 percent carbon dioxide; the rest is nitrogen. The air that is breathed contains about 21 percent oxygen; thus, some of the swallowed oxygen is absorbed by the blood capillaries in the stomach. Carbon dioxide is formed by reduction of the food by the stomach’s gastric juices. Nitrogen is not absorbed as a gas and is usually passed on.
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