मानव शरीर में, पाचन की भौतिक और रासायनिक प्रक्रिया किस अंग से शुरू होती है?

The digestion process initiated by amylase in saliva leads to the breakdown of carbohydrates into __________.

The process initiated by amylases in saliva leads to the breakdown of carbohydrates into ______.

Which substance is secreted by gastric glands to protect the inner lining of the stomach from the action of hydrochloric acid under normal conditions?