You chew food with teeth into small bits. Saliva wets it and starts breaking starches into sugar. This makes food easy to swallow., Food goes down this muscle tube. Special waves push it like toothpaste from a tube – no falling back!, Strong acid and juices mix food for 2-4 hours. It turns into soupy chyme. Enzymes cut proteins small., Long tube (6 meters!). Pancreas adds sugar cutters, liver sends fat cleaners, gallbladder helps. Walls absorb nutrients, vitamins, sugars, fats into blood., Thick tube takes back water (1-2 liters daily). Good bacteria make vitamins K and B..

Leaderboard

Visual style

Options

Switch template

)
Continue editing: ?