Submitted by tulaero23 t3_11bx6q0 in explainlikeimfive
RevaniteAnime t1_ja0elhb wrote
So, our entire digestive system is technically the "outside" of out bodies. Our immune system keeps most little breaches that might happen under control. There also a healthy supply of "good" bacteria inside of us, that usually helps keep "bad" bacteria from taking hold.
akcoder t1_ja27062 wrote
Like a Klein bottle!
elcaron t1_ja2h1sq wrote
I don't know if your intestines require the 4th dimension, but mine are rather like a donut.
Logical-Pepper4228 t1_ja3g6b5 wrote
Depending on what I eat....sometimes it seems like my system folds space and time and just shoots that shit out of me almost immediately.
dobr_person t1_ja2hnol wrote
More like a doughnut (or a mug)
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