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The Eustachian tube extends from the anterior wall of the middle ear to the lateral wall of the nasopharynx, approximately at the level of the inferior nasal concha.
The Eustachian tube also drains mucus from the middle ear. Upper respiratory tract infections or allergies can cause the Eustachian tube, or the membranes surrounding its opening to become swollen, trapping fluid, which serves as a growth medium for bacteria, causing ear infections.
Originally posted by rickymouse
We use a hundred percent of our brain. Maybe not for conscious activity but for immune system regulation and all necessary subconscious thinking. The frequency of this is considered background noise but it has been found that this background noise is very necessary to our bodies functions and sometimes advanced thought perception.
did we develop in the womb primarilly as females?
Originally posted by all2human
why do men have nipples
listverse.com...edit on 6-9-2012 by all2human because: (no reason given)
Originally posted by charles1952
Well, sure it's useless now, but you should have seen me 40 years ago.
All right, I know, Minimal off-topic post. You can turn me in, but I'll plead temporary insanity. I had to do it.
We all start off as females, then those predisposed to, will change (I think its YY for females and XY for males) one Y to an X and will become male.