
03/05/08, 10:02 AM
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Join Date: Aug 2007
Location: the flat land of Illinois
Posts: 4,652
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in a human infant, the suck is the result of the nipple being pulled towards the back of the mouth, to the soft pallet, and then the the infant's tongue 'stroking' the underside of the nipple to massage the milk out. The initial suck only brings milk to the end of the nipple - it's the wavelike motion of the tongue that increases and decreases pressue/vacuum that moves the milk out. So sucking is only part of it.
Perhaps the teeth caused something like a cleft lip reaction, where vacuum could not be created because the mouth area could not seal? Just a t hought.
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