1 lactase intolerance, and. 2  malabsorption of certain foods. 3  Much of the gas generated is due to microbial breakdown of foods so that gases, for example, hydrogen, carbon dioxide, and methane are generated; the odor is from other trace waste gases or compounds such as skatole and sulfur-containing substances.
Best Answer: Blood enters the heart through the right atrium, it then goes into the right ventricle to be pumped via the pulmonary artery to the lungs to be re-oxygenated. After that it heads, via the pulmonary vein, to the left atrium in the heart to be pumped around the rest of the body again via the aorta.
Describe what happens to the blood as it leaves the small intestine. 1. The small intestine absorbs products or digestion 2. Nutrients molecules (and any toxins) travel in the hepatic portal vein to the liver. 3. Liver monitors blood content. 4. Blood enters general circulation by way of the hepatic vein.