"Gastrointestinal TractPTNCI" . "GutSYNCI" . "Gastrointestinal_Tract"^^ . _:b676605 . . "C34082"^^ . _:b676605 . "The upper gastrointestinal (GI) tract is comprised of mouth, pharynx, esophagus and stomach while the lower GI tract consists of intestines and anus. The primary function of the GI tract is to ingest, digest, absorb and ultimately excrete food stuff. (NCI)CDISC" . "GASTROINTESTINAL TRACTPTCDISC" . "CDISC"^^ . . _:b676605 . "Anatomical Structure"^^ . "Gastrointestinal TractSYNCITCGA" . . "digestive tractPTNCI-GLOSSCDR0000046447" . . _:b676605 . "C0017189"^^ . "Gastrointestinal TractSYCDISC" . "Alimentary CanalSYNCI" . "Digestive TractSYNCI" . . . "gastrointestinal tractPTNCI-GLOSSCDR0000046189" . "Gastrointestinal Tract"^^ . "The upper gastrointestinal (GI) tract is comprised of mouth, pharynx, esophagus and stomach while the lower GI tract consists of intestines and anus. The primary function of the GI tract is to ingest, digest, absorb and ultimately excrete food stuff.NCI" . "Gastrointestinal Tract"^^ .