Chapter 26. Sinonasal Development and Anatomy
Which of the following anatomical structures does not arise from the ethmoid bone?
Which of the following sites corresponds to the weakest portion of the anterior cranial fossa skull base?
A. Junction of the posterior fovea ethmoidalis and lateral lamella
B. Lateral lamella, at the site of insertion of the anterior ethmoid artery
C. Skull base attachment of the middle turbinate
D. Superior attachment of the perpendicular plate of the ethmoid bone
Which of the following anatomic structures would be encountered first when extending a maxillary antrostomy posteriorly from the natural maxilary os toward the posterior maxillary sinus wall?
C. Descending palatine artery
D. Posterior septal artery
Presence of an onodi cell places which of the following structures at greatest risk intraoperatively?
Which of the following cells would most likely displace the frontal sinus drainage pathway laterally?
A. Intersinus septal cell
B. Supraorbital ethmoid cell