Digestive System

The digestive system is a group of organs responsible for the conversion of food into nutrients and energy needed by the body and well as removing feces, the solid undigested wastes of digestion. The excretory system is specialized for the elimination of fluid waste, including the waste byproducts of metabolism, in urine. Other systems and organs in the body play a part in excretion. The respiratory system, for example, eliminates water vapor and carbon dioxide through exhalation while the integumentary system acts as an organ of excretion by removing water and small amounts of urea and salts in sweat).

The digestive system is a group of organs responsible for the conversion of food compounds into nutrient substrates and the subsequent...