Fig. 3From: Measurement and implications of the distance between the sphenopalatine ganglion and nasal mucosa: a neuroimaging studyRhinoscopy showing the mucosa over the sphenopalatine foramen (SPF) and the sphenopalatine artery (arrow). The SPF does not appear as an open foramen communicating directly with the sphenopalatine fossa. The SPF is covered by mucosa and packed with neurovascular structures and connective tissueBack to article page