Pterygoid canalCheck our Apps3D Heart AnatomyXR Anatomy3D Osteology 3D OsteologyAll visual materials are sourced directly from the app 3D OsteologyLearn MoreThe pterygoid canal is the tunnel that passes through the base of the pterygoid process. It has an anterior orifice opening on the anterior surface and a posterior orifice that opens on the posterior surface. (1)