As organism we cannot escape from food. In order to food we consume can be digested (absorbed) by small intestine, then food must be changed formerly from complex form to simpler form. To change that food is required a system, that is digestive system.
Human digestive system consists of digestive tract (saluran pencernaan) and digestive gland (kelenjar pencernaan).
The digestive tract is digestive organs that are passed by food. Digestive tract enlengthens (memanjang) from mouth until anus. Digestive tract involves the mouth, throat, stomach, small intestine, large intestine, and anus.
The digestive gland is part that produces enzyme that is required to help digesting food. The digestive gland involves salivary gland(kelenjar ludah), stomach, liver, and pancreas.
The food we eat, first enters into the mouth, then become smooth because it is chewed (dikunyah) by teeth and helped by salivary gland. After smooth can be swallowed (ditelan) fast through lower part of larynx and throat. The swallowed food is collected in the stomach and mixed with gastric juice(getah lambung), so it becomes liquid like oatmeal(bubur). Then the oatmeal food porridge is little by little outer into small intestine.
From the small intestine then enters to the large intestine. In the large intestine food waste that cannot be digested anymore becomes dense because the water is absorbed back by wall of large intestine. Then the food waste arrives to intestinal axis and finally ended in anus. Finally food waste will be discharged (dikeluarkan).
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