The primary function of the digestive system is to break down the food we eat into smaller parts so the body can use them to build and nourish cells and provide energy. The digestive system is a series of hollow organs joined in a long, twisting tube from the mouth to the anus.Inside this tube is a lining called the mucosa. In the mouth, stomach, and small intestine, the mucosa contains tiny glands that produce juices to help digest food.wo solid organs, the liver and the pancreas, produce digestive juices that reach the intestine through small tubes. In addition, parts of other organ systems (for instance, nerves and blood vessels) play a major role in the digestive system.
Confidence votes 197. Japan's government is a democratic parliamentary government, with a constitutional monarchy as the head of state. Japan's Imperial role is essentially only as a figurehead now, and the Emperor has no defined governmental power.
Simply, Japan is a country where there is only one single legislative authority, which drafts and passes all legislation, and has a ceremonial monarchy. The likes of the UK, Spain and the Netherlands in Europe have very similar systems.