Biology Whats In Our Digestive System Explained Human Body Science for Kids

how is poop made let's check out michael's digestive system and see what's wrong first off the mouth all this chewing is making me dizzy chewing is very important step in food digestion bobo look at how michael's teeth are crushing the biscuit and it is much smaller than it was after the food is broken down into smaller pieces the ball of food can easily travel down the esophagus to our stomach this first step of food processing which we swallow food and drinks is called ingestion the transparent liquid is called saliva it helps wet our food so that it's easier to swallow we are going to be traveling down the esophagus and get into the stomach hang on tight whoa that felt like being squeezed out from toothpaste yes bobo the esophagus got muscles that contract involuntarily to push the foot down it also connects our mouth to the next location the stomach no more shaking yes the stomach muscles contract and turn the food into even smaller pieces but not only that look at the biscuit bobo it looks like it's dissolving what's happening our stomach contains hydrochloric acid an extremely strong acid that breaks down food chemically and kills most of the germs that may be present in our food the second step of food processing in which we break down food into smaller pieces is called digestion whoa what are those nixon they look like fingers yes bobo we are now in small intestine and those finger-like projections are called v-line the main role of the small intestine is to absorb the nutrients from our food that are digested by the enzymes in our saliva and the stomach just before the third step of food processing is called absorption hold on second how long have we been in the small intestine form thought it was meant to be the small intestine yes bobo the small intestine is super long it's around 7 meter long and is looped and packed in very confined space look we're almost at the end there's nothing wrong with michael's small intestine let's get to the next stop the large intestine whoa the large intestine is lot wider than the small intestine great observation bobo the large intestine mainly absorb excess water and produce poop what's in the poop and why is it so stinky poop is mostly undigested food bacteria and other substances that are released by the intestines usually it is the bacteria in the poop that makes it smelly an important way to ensure your digestive system stays healthy is by drinking plenty of water if you don't drink enough water it will be much harder to get your poop out and then we poop not yet bobo the poop is stored in the lower end of the large intestine called the rectum look at how the excess water is absorbed from the biscuit and it is now ready to be adjusted from the body the final step of foot processing which we excrete poop from our body is called elimination thanks for watching want to explore more of the human body with bobo sign up now and get started with free trial see you soon