Investigate the structure and function of the gastrointestinal tract, including the mouth, esophagus, stomach, intestines, and accessory organs, and learn about digestion, absorption, and nutrient metabolism.
The Digestive System Introduction The digestive system is responsible for breaking down food into nutrients that the body can absorb and use for energy, growth, and repair. Organs of the Digestive System a. Mouth Digestion begins in the mouth where food is chewed and mixed with saliva containing enzymes that start the breakdown of carbohydrates. b. Esophagus The esophagus is a muscular tu...…
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