Why does the last thing you eat sometimes not come up when you vomit but something before that comes up?

Question

I threw up last night because I scraped my tongue a bit too far back and it activated my gag reflex. I’d been at dinner with a friend, and I’d had a fair amount of wine, but when I threw up it was only the food that came up and not the wine? Why is this?

In: Biology

Answer 1

In this scenario at Club GI, the wine was able to splash its way past the bouncer (pyloric sphincter) to get from the main floor (your stomach) to the VIP area next door (small intestines) and be absorbed. The solid food though has to wait to be small enough before the bouncer will let it enter VIP. Then when Club GI got shut down later in the evening by the authorities (your finger/gag reflex) everyone left in the main floor got sent outside and everyone in the VIP area left though “the back doors” (normal bodily functions).