The resulting semifluid paste—chyme—is sealed in the stomach by two ringlike sphincter muscles for several hours and then released in short bursts into the duodenum. The first of three ...

On gross pathologic examination of the abdominal ... We took representative samples of heart, lungs, spleen, liver, kidneys, stomach, duodenum and colon for histological examination.

This one is going to get a little gross. For now ... stomach acid does to the food in your stomach. Transfer the food to the tights, that's the small intestine. Squeeze out the remaining liquid.

Superior mesenteric artery (SMA) syndrome is a condition that affects the duodenum — the section of the small intestine that joins the stomach. The syndrome is caused by the compressing of the ...