digestive system

abdomen abdominal absorbed anatomical anatomy and anus appendix assimilated background bladder body breakdown can cavity colon components design diagram digest digestion digestive duodenum education esophagus first food gall gallbladder gastrointestinal gland glands has health healthy human illustration intestine into involves isolated jejunum large learning liver male man many medical medicine mouth oral organ pancreas process rectum science scientific section smaller spleen stages starts stomach system the trachea tract which