I have some confusion regarding digestion system, that we drink and eat food from mouth which goes to stomach via same food pipe, in stomach there is acid then how water get filtered and why its not mix with food and acid, what is the process of water goes to kidney from mouth? Thanks.

Suggestions offered by doctors on Lybrate are of advisory nature i.e., for educational and informational purposes only. Content posted on, created for, or compiled by Lybrate is not intended or designed to replace your doctor's independent judgment about any symptom, condition, or the appropriateness or risks of a procedure or treatment for a given person.