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ELI5: How do organs *consistently* develop on a given side? (by Sparky)

 Sparky (0)  (29 / M-F / Massachusetts)
3-Dec-18 8:22 pm
ELI5: How do organs *consistently* develop on a given side?

EG: Why is the human stomach always on a person's left? I've read this ELI5 & the answers explain how asymmetry comes about but not how it consistently happens in the same way (in my understanding, the organs are asymmetrical because of the "bunching up tubes" nature of our internal organ development).
EDIT: A couple people say I shouldn't use "always" so I should clarify I mean 99.99% (wiki says situs inversus occurs at a rate of 0.01%)


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