Digestive System Organs

The digestive system is a group of connected organs that form a long, twisting tube inside the body. This tube starts at the mouth and ends at the anus.

Food enters through the mouth, where teeth, tongue, and salivary glands begin digestion. Once swallowed, it is called a bolus. It then moves down the esophagus, a muscular tube that uses peristaltic movement—a wave-like motion of muscles that moves the bolus through the system.

Next, it enters the stomach—a stretchy, J-shaped organ that churns the bolus and mixes it with acid and enzymes. From there, a thick liquid, also called chyme, enters the small intestine, a long, coiled tube where nutrients are absorbed into the body.

The remaining materials move into the large intestine, which absorbs water and forms solid waste.

Along with these, the digestive system also includes the liver which produces bile to break down fats, and the pancreas which releases enzymes that support digestion.

Together, these organs form the digestive system—a network that turns food into the fuel your body needs daily.