this is a random thing but uh since ghost has lungs AND gills, they would probably need three separate trachea. One for the lungs.<br/><br/>One for passing water through the gills on the right side of their neck/shoulder and another for passing water through the left side of their shoulder.<br/><br/>So if their throat were ever slit, then they could probably still have functional gills and breathe underwater since the other two trachea would run down the sides of their neck.