Well jingl that also raises an interesting point in terminology re body parts.
Would you prefer bum or bottom or shall we use more technically appropriate terms such as 'anus'....I suppose we could go all Hyacinth Bucket and say derriére ????
There are so many bits and pieces of one's 'innards' that it's difficult to tell a doctor just what's wrong. Could I go into the consulting room and say 'I have a pain in my duodenum/gall bladder/spleen/...' without some specialist knowledge which is why we use general terms like 'tummy' or 'stomach' and leave it to the doctor to prod about a bit and make a diagnosis.