What is the "Roof" of the Nose "Coated" With? Is It Full of Nerves?

my upper part of the nose brige hurts(on one side only).It's very hard to localize it, but now I suspect the tender point is exactly UNDER the bone, on the inside. what is under the bone? is it skin or cartilage, is that place full of nerves? or can you find more nerves on the septum and turbinates? unfortunately i couldn't get a diagnosis until now.at first i thought the pain is located on the middle turbinate, now i tend to believe it's under the bone. thank you in advance!