Sense of course of a working life first attested 1803. v. 1590s, to charge at a tournament, from career (n.). The meaning move rapidly, run at full speed (1640s) is from the image of a horse passing a career on the jousting field, etc. Related: Careered; careering.
Contractions of the stomach muscle, called peristaltic waves, grind, crush and mix the food producing a liquefied substance called chyme.. The pyloric sphincter separates the stomach from the duodenum. This valve keeps food and gastric juices in the stomach until liquefied enough to proceed into the duodenum.
The duodenum is attached to the stomach by the pyloric sphincter. The duodenum is a short portion of the small intestine connecting it to the stomach. The pancreatic duct, which introduces bile and pancreatic juice into the small intestine, is directly connected to the descending duodenum.he duodenum is a short portion of the small intestine connecting it to the stomach. The pancreatic duct, which introduces bile and pancreatic juice into the small intestine, is directly connected to the descending duodenum.