Food moves along a digestive tube; digestive juices can enter it from helper organs. Most nutrient absorption occurs across the small-intestine lining. Both small and large intestines absorb water. Muscle movements help move material along; diagrams show a sequence, not a personal digestion time.
Worked example
An arrow from the pancreas to the small intestine is labeled digestive juice. It does not mean swallowed food takes a detour through the pancreas. Read what the arrow carries, not just its direction.
Three draft labels
Label A says the food route goes through the pancreas before reaching the small intestine. Label B says only the large intestine absorbs water. Label C says a row of boxes proves exactly how long every person takes to digest lunch. A helper-arrow model shows juices entering the small intestine, while food arrives from the stomach. Check the drafts using this paper model. Do not test eating speed or collect anyone's diet or health information.