All animals need to eat food to get ______1______ to live. But in order to use this food, they have to break it down in a process called digestion. And so, all animals have a group of connected organs called the digestive system.
In humans, the process of digestion begins in the ______2_______ where food is chewed into small pieces by the teeth. The __3___helps by moving these pieces around. These pieces are covered by saliva, or spit. The saliva makes the food slippery so that it is easier to swallow. It also helps to break down the food.
Once the food is swallowed, it passes through the pharynx, which is like a gate that sends food into the ______4________ and air into the lungs. The food travels down the esophagusand into the stomach. Once in the stomach the food is mixed with ______5_______ and crushed some more.
After spending some time in the stomach, the food is sent into the _____6________where nutrients are _______7_______. The liver helps by producing some digestive juices called bile. Next, the remaining food goes into the _____________8____________ where the liquids are absorbed. The remaining food is called ________9_________ and it is pushed into the ______10__________ where it waits before leaving the body.
