Why does air come out of a tear duct when I blow my nose hard?

Connected. There is a connection between the nasal cavity and the tear duct system. This duct drains tear fluid into the nose. Enough pressure in the nose can force air back up the duct.

Related Questions

Why does air come out of my left eye tear duct whenever I blow my nose?

Normal. There is a connection between the nose and eye through the nasolacrimal duct. Air can be forced through this in many people. There are also videos of people forcing liquids such as milk as well. Read more...

Why when I blow my nose and air comes out of my tear duct?

Normal anatomy. The tear duct empties into the nose--specifically, under the inferior turbinate (a bony shelf that hangs from the side wall of the nose. There is a cool trick in which people wear goggle with water inside and blow air bubbles in the water in the mask. Here is a video http://www.Youtube.Com/watch?V=8asb3xjpfkc. Read more...