digestive system

The group of organs that work together to take in food and liquid, break them down, absorb nutrients and pass waste from the body.

The digestive system includes the organs of the gastrointestinal (GI) tract, or digestive tract. The organs of the GI tract are the mouth, pharynx (throat), esophagus, stomach, small intestine and large intestine. The digestive system also includes other organs of digestion, which are the teeth, tongue, salivary glands, liver, pancreas and gallbladder.