The Digestive System

The digestive system is the group of organs that work together to break down food into nutrients that the body can use for energy, growth, and repair.

Organs of the Digestive System

• Mouth: Food enters the body and is chewed by the teeth, and mixed with saliva which starts the process of digestion.
• Esophagus: The food is then swallowed and moves down the esophagus to the stomach.
• Stomach: In the stomach, the food is mixed with digestive juices that break it down into a liquid form.
• Small Intestine: The liquid food moves into the small intestine where nutrients are absorbed into the bloodstream.
• Large Intestine: Any remaining waste moves into the large intestine where water is absorbed, and the waste is prepared for elimination from the body.
• Liver: The liver produces bile, which helps break down fats in the small intestine.
• Pancreas: The pancreas produces digestive enzymes that help further break down food in the small intestine.

Functions of the Digestive System

The main functions of the digestive system include:

• Ingestion: Taking in food and liquids.
• Digestion: Breaking down food into nutrients.
• Absorption: Taking in nutrients into the bloodstream.
• Elimination: Getting rid of waste from the body.

Study Guide

1. What are the main organs of the digestive system?
2. What is the function of the liver in the digestive system?
3. Describe the process of digestion in the stomach.
4. What is the role of the small intestine in the digestive system?
5. Explain the functions of the digestive system.

Feel free to reach out if you have any further questions!

[Digestive System] Related Worksheets and Study Guides:

• Human biology IIBiology • High School
• Human bodyScience • First Grade