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.
Japan's Constitution, which came into force in 1947, is based on three principles: sovereignty of the people, respect for fundamental human rights, and renunciation of war. The Constitution also stipulates the independence of the three branches of government - legislative (the Diet), executive (the cabinet), and judicial (the courts). The Diet, Japan's national parliament, is the highest organ of state power and the sole law-making organ of the state. The Diet comprises the 475-seat House of Representatives (lower house) and the 242-seat House of Councillors (upper house). All Japanese citizens can vote in elections once they reach the age of 18.