What is the main role of the stomach and intestines?

The main role of the stomach and intestines is to digest food. The stomach serves as a key location for the initial breakdown of food, where mechanical and chemical processes occur. It uses gastric acids and enzymes to break down food into a semi-liquid form called chyme. This chyme then moves into the small intestine, where the majority of nutrient absorption takes place.

In the small intestine, enzymes from the pancreas and bile from the liver further aid in the digestion process, allowing the body to absorb carbohydrates, proteins, fats, vitamins, and minerals. The large intestine follows, primarily responsible for absorbing water and electrolytes, and forming waste products for elimination.

This digestive process is crucial for converting food into energy and nutrients, essential for the body's overall function, growth, and maintenance. Thus, the integral roles of the stomach and intestines highlight their importance in digestion and nutrient absorption.