X1014246923-00427-85921</DOCNO> Digestive system Digestive system Digestive system - duodenum Digestive system - food processing Digestive system - liver Digestive system - salivary glands Digestive system - stomach Digestive system - duodenum Digestive system (d * jes&quot;tiv) is the series of organs that process and convert food into simpler substances that the body uses for nourishment.
(X1014246923-00427-85921</DOCNO>; is; the series of organs) (organs; process; ) (simpler substances; uses; for nourishment)
X1014246923-00427-85921</DOCNO> organs simpler substances
is process uses
the series of organs
for nourishment