How does your stomach decide that food goes one way and drinks go the other?
In: Biology
Your stomach doesn’t. The valve at the exit of your stomach (the pylorus) opens and the contents of your stomach move to the small intestine. The small intestine absorbs the nutrients from the food and then it moves to the large intestine, which primarily absorbs water. What is left over is poop.
Separately, your kidneys are responsible for removing liquid waste from your bloodstream and moving it to your bladder as urine.
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