organs of the gastrointestinal tract. esophagus, stomach, duodenum, small intestine, colon. digestion. infographics

abdominal anatomical anatomy anus appendix assistance back background bacteria belly body cecum clipart coli colon constipation description diagnosis digest digestion digestive drawing examination excretion gastrointestinal good graphic health hospital human illustration image internal intestine isolated medical object organ parts path science scientific screening small stomach system tract vector white