Why doesn't our own stomach acid kill us?

Stomach acid can digest meat but it doesn't digest the stomach or the intestines. Why not?
Teachers, download the worksheet for this video at www.liacoseducationalmedia.co....
The video above is a small part of the Shedding Light on Acids and Bases series. Visit the Shedding Light on Acids and Bases Episode 2: Acids and Carbonates page at www.liacoseducationalmedia.co....
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Digestive system diagram:
commons.wikimedia.org/wiki/Fi... by Orem. CC License.
Mucus footage: • Make your own Mucus ex... by Kids Fun Science. CC License

[@Allomerus]

Nice work Spiro. I like the graphic over your trunk. I'm glad the stomach was cleaned up!

[@nooraly1203]

I’m lucky to found this channel!

[@Chickerosky]

Great video. Thank you for your content!

[@Amb3roo]

ONLY 7K SUBS?!

[@TastySanchez]

This was an excellent video

[@YuYuYudotpsd]

thanks

[@GUCR44]

Very cool.. I never knew this. Thank you for this video. Peace

[@sugamthapa6526]

is that real

[@rrxseyy]

easy, stomach walls they are thick enough to hold in the acid

[@Addicted2wowlulz]

I always thought how small intestine survives the food with stomach acid, this explains a lot.