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You have two nasolacrimal ducts that connect your nose to your eyes. Moreover, the upper end of the tear duct has two openings. Thus you have at least seven h

You have two nasolacrimal ducts that connect your nose to your eyes. Moreover, the upper end of the tear duct has two openings. Thus you have at least seven holes. https://en.wikipedia.org/wiki/Nasolacrimal_duct https://en.wikipedia.org/wiki/Nasolacrimal_duct

javajosh 6y ago
Sure but the ear/nose/throat are basically just a filter of the mouth hole. But yeah humans are basically a GI tract plus appendages, which is indeed topologically a toroid.
novia 6y ago
Oo very interesting. Thank you.