the human digestive system made easy

alimentary anatomy art biology bladder breakdown canal chew cilia cirrhosis clear colon colorful crohns diet dietary digest digestion digestive drawing drink duodenum easy eat esophagus food fuel gall gastrointestinal health heartburn human ibs ileum illustration isolated liver meal medical medicine mouth nutrition pancreas people physiology rectum reflux saliva stomach swallow system taste tract ulcer understandable vector waste white