Not sure if this is the place for this topic I couldn't find one. But, please help me im way over my head.

I need to write a presentation on digestive system. From it entering your mouth and then till the large intestine. IT has to be at least 10minutes long but I could work with 8minute minimum. Anyone who gives me it I will time myself saying it and see if I will use it.

The most important part which I am most stumped on is I have to make a 3-d digestive system. You know with the mouth, gallbladder, liver, intestines. It has to be as correct as possible. I have no idea what materials I should use.

Thank you in advance. I will highly appreciate any help.

ah.. I thought it would be a movie. March 4 hmm.. try to make something like this

Use playdough lol just joking but clay may work..i dunno

a movie lol but no more worried about all the other stuff further down

I have an idea do what we all had to do in school... The work!

I never had the internet nor did anyone help me on such projects. You won't learn anything if we did you work for you.

I will give you a little tid bit of info that will freak kids out in your class...

At any given time your body contains 2-4 pounds of bacteria in the digestive tract and we need many of these to survive. We share a symbiotic relationship with many bacteria.

thats very lazy thinking,as well as plain rude and slightly arrogant. do your own homework. you can obviously use a pc.. so google it. do your own research.its an easy topic to get ten minutes worth of work.

i think your also taking the unexplained mystery's title too literally. most of us dont find your homework mysterious.just your attitude.

no reason for that I asked a question cause im stumped. I already did extensive work and wanted to see if anyone knew what to do.

Square of cardboard (blank/white) with coloured clay/doh is the way I'd go about it..

Finished science last sememster, the only project we had was a 3D atom model...

To stretch out the presenation just get some random fun facts of the web, like the one AG said..

I recall an "art" exhibit shown on one of the science channels or a science show on regular broadcast tv, in which the entire digestive process was represented by a mechanical device. The end-product was just as objectionable as one would expect. The human body is basically a tube. The side-branches are all fairly reproduced mechanically, beginning with the salivary process that excretes amylase as the strach-digesting enzyme, but the hormonal processes and the nervous system controlling or stimulating and limiting activity is impossibly complex to reproduce. We know now that salivary enzymes (amylase) which you'd expect to be destroyed by acids and pepsin in the stomach can be "reconstituted" in the alkaline environment of the vicinity of the pancreas, where most of the digestive enzymes are excreted into the small intestines. This includes (am I helping you to cheat here?) secretions of the auxillary systems that aid in the "micronization" of fats by solvents (bile) and the activity of lipase; protein digestions by trypsin, chymotrypsin and carboxypeptidase; and then more amylase for starches as well as ribonucleases for digesting genetic matter from plants and animals. The absorption by the villus processes both into the blood and the lymph systems.....and even reabsorption of these digestive enzymes into the "parenteral" circulation represented by both blood and lymph systems, and their activities outside the digestive tract where they will be either incapsulated by white blood cells "phagocytes", or inhibited by anti-elastase or "anti-trypsin" inhibitors, and reused on foreign bodies. The secretion by the pancreas of insulin that not only controls blood sugar, but also attaches to amino acids for recreating more enzymes in the pancrease (aided by chromium 3+, without which trypsin is almost inactive), and lots more. Well, good luck. You couldn't have picked a more complex process unless it is how the brain moderates all activities in the body.

If you're into studying about that, try iridology and the iris of the eye. Well, you know look into the computer about iridology and the layout of the intestines. Check out the layout of the intestines and the area that it corresponds to in the body.

For showing how the digestive tract works you could simulate it by popping an orange for example in to a leg of a pair of tights (pantyhose) and explain/demonstrate how the contracting muscles force the object down the oesophagus and into the stomach, if you could get the orange to drop into a juicer/stomach after travelling down a throat/pantyhose then you could get a good representation of what happens, this could then flow down a pipe with a filter in it what will catch the solid matter, the fluids could be soaked up by organ representations made in blotting paper what would demonstrate how the body absorbs the nutrients and reclaims the water, and finally upon your action the colon/tube filter could be triggered to release the solid matter what represents the end result of eating.

I guess for effect this could be fitted into a mannequin.

You could also have an old Tupperware tub with a bit of sausage in it with some enzymes to demonstrate how it breaks food down in your stomach but I cant see how you can incorporate this into a model.

Just add representations of the relevant organs at the correct places upon the digestive tract, in reality its no more than a tube.

You can use anything you want to represent the organs its just that simple house hold items are easily identified and people can quickly see what your trying to demonstrate when using them.

Orange/pantyhose/juicer/filter's/tube/receptacle............. and drink the end product

Food/throat/stomach/organs/colon/faeces