 Okay, now we can look at the inside of the skull. So starting from the top, so in our ethmoid bone here we've got the Christagala, which is this projection here, which is surrounded by the cribiform plate. Okay, of the sphenoid bone you have the lesser wings, which is just this region right up here and the greater wings, which is this lower section here. Okay, this saddle-like structure right here, the seletursica, the petrus portion, this raised region right here. So this is where your auditory canal would kind of go through. So if you remember you had the external auditory medius here and your internal auditory medius, which is where it would come out right here.