Smell

Smell is actually "taste", when you "smell" something it means that you have inhaled tiny 'bits' of something. These 'bits' bounce off your nose hair, and land on the moistened surface of your sinus where they dissolve and chemoreceptors are able to judge the contents of the material. Your body is then left with the material to expel or metabolize (depending on the size/makeup of the particulate). There is a good chance that whatever you smell ends up in your blood stream.