Stomach Stomach The stomach (from ancient Greek στόμαχος, "stomachos," "stoma" means mouth) is a muscular, hollow organ in the gastrointestinal tract of humans and many other animals, including several invertebrates. The stomach has a dilated structure and functions as a vital digestive organ. In the digestive system the stomach is involved in the second phase of digestion, following mastication (chewing). In humans and many other animals, the stomach is located between the oesophagus and the small intestine. It secretes digestive enzymes and gastric acid to aid in food digestion. The pyloric sphincter controls the passage of partially digested food (chyme) from
The Stone Age (The Goodies) them. They discover they cannot get back out the dinosaur's mouth, so decide to travel through the creature till they reach its stomach. They are stuck there for a long time, until Graeme comes up with an idea — they will shout through the Tyrannosaurus Rex. So Bill shouts for help, but ends up waking the creature. When the creature's mouth opens, they all run out and climb back up the hole to their office. Graeme states he wishes he could have a better examination of the creature, when it smashes through the floor and tips the office over. The