The digestive system's primary role is to ingest food and fluids for digestion into smaller parts. These smaller parts are then absorbed into the bloodstream for the body to utilize the nutrients as fuel, energy, and fluid. This process is essential for maintaining the body's nutritional needs.

1. The Digestive System

2. The role of Digestive System
The primary role of the digestive system is to ingest food and fluids
so that it can be digested into smaller digestible parts that can be
absorbed from the digestive system and into the blood stream so
that nutrients can be used by the body for its fuel, energy and fluid
needs.