In our mouths and loads and loads of little glands. The take water and salt and other little chemicals and add little enzymes which break down food. You need the saliva to be able to break down food. If something is really sour you get lots more saliva don’t you? Its a reaction!
Comments
Lily commented on :
Wow
Deeps 2005 commented on :
Long journey no ?
Hayley commented on :
From the blood? There are lots of blood vessels in your mouth and in your cheeks. Don’t worry, not too far to travel!!