What is the primary function of the large intestine?

The primary function of the large intestine is to absorb water and form feces. As food passes through the digestive tract, it goes through the small intestine first, where most nutrient absorption occurs. The large intestine then takes the remaining indigestible food matter and reabsorbs water. This process helps to solidify the waste material into feces, which is stored in the large intestine until it is expelled from the body. This function is vital in maintaining the body's hydration levels and ensuring that waste is efficiently processed and eliminated.