hi, i was wondering a lot about the nasal cavity and its passage. infact about the whole nasal structure. where does it all lead to? if an insect reaches to your nose? where it will go? i asked a lot of people over the internet and have seen some of the nasal anatomy pictures and they say, it leads to your throat and then to the stomach. now i asked a friend of mine who's daddy is a doctor. just a general physician. he said well it leads to your stomach and when i got more detailed about my question like if an insect crawls in where it will go, and he replied no one can tell prior to reports. and then he added that yes it leads to brain upon my asking again, but that it is a very minor passage. Now is that possible for an insect to crawl into your head or brain and remain there? what sort of protection we got for our brains through the nasal cavity when we move up? also what sort of fluids are there in our head? can they kill insect spiders ants? i wonder why there is no such thing over the internet? no info regarding my questions and concerns. anyhow. what would you feel finally if something is in your nose and in the upper part not in the lower nostrils as they are easily in reach of the fingers. thanks....please show some kindness and do post your personal experiences and/or qualified medical knowledge!!! Thanks...........