Fig. 4. Posterior part of the lateral wall of the nasal cavity. (A) Specimen prior to dissection. (B) Following removal of the mucosa. Note the SPA and vein go through the sphenopalatine foramen (white arrow) and another tributary (yellow arrow) perforates the MP to connect with the SPV which runs with the posterior lateral nasal branches of SPA. ET, eustachian tube; INC, inferior nasal concha; MNC, middle nasal concha; MP, medial plate of pterygoid process; LSPN, lateral superior posterior nasal branches of the maxillary nerve; SS, sphenoidal sinus; SPV, sphenopalatine vein; SPA, sphenopalatine artery.
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