With this in mind, i would ask you to consider watching the following video without mousing over or clicking on any of the recommendations at the end. If you do, you have only yourself to blame and you won't be able to unsee or unhear any of it. If you want, i can give you a context based on concern for people's safety, a certain Wikipedia article which got deleted and a certain psychotherapist who was afflicted with scepticism:
Anyway, on the subject of the video itself, it's mainly about the stomach and associated tubing. The stomach varies in size according to its content and is far from a passive receptacle, although oddly not much digestion takes place in it compared to a little lower down. As it fills, it relaxes, thereby preventing damage, and it can hold up to five litres of liquid, solid or a combination of the two. It also signals the colon hormonally as it empties, encouraging the movement of the contents of the digestive system down towards the anus to make space for the next lot. Liquids are not compressible, so five litres outside the body will be five litres inside it, but in the case of air and other gases, five litres at atmospheric pressure will be less inside the stomach and as a result the capacity of the stomach for air seems to be greater than five litres although in fact it isn't. Further down in the digestive system, the intestines have a capacity of about ten litres, so the whole digestive system from the bottom of the oesophagus downwards has a capacity of about fifteen litres overall. Add to this the five litres of vital capacity in the lungs and you have twenty litres.
Some people might realise that what i'm writing here has a different significance than what the uninformed reader might think, which really just proves my point that you can shout as loud as you like on the internet and nobody will hear you.
Next stop Violet Beauregarde!
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