Pterygopalantine Fossa Flashcards
What makes up the lateral and medial walls of the pterygopalantine fossa?
Lateral:pterygomaxillary fissure
Medial: spenopalantine foramen
What goes through the pterygopalantine fossa?
V2
What makes up the posterior and superior walls of the pterygopalantine fossa?
Posterior: pterygoid canal
Anterior: inferior orbital fissure
What type of ganglion is the pterygopalantine ganglion?
Parasympathetic
What are the three fibers the pterygopalantine ganglion receives?
Sensory (v2) Preganglionic parasympathetic (greater petrosal nerve) Postganglionic sympathetic (deep petrosal nerve)
What are the 5 branches of the pterygopalantine ganglion?
Lesser palantine nerve Greater palantine nerve Nasopalantine Posterolateral branches Pharyngeal nerve
When the maxillary nerve (v2) enters the inferior orbital fissure what is its name changed to?
Infra orbital nerve
What are the 4 branches of v2 (maxillary)
Zygomatic
Intracranial
Zygomaticotemporal
Ganglionic
What are the branches of the maxillary nerve (v2) that involve the teeth and sinuses?
Posterior superior alveolar nerve (molar teeth + maxillary sinus)
Middle superior alveolar nerve (premolars + maxillary sinus)
Anterior superior alveolar nerve (incisors/canine teeth +maxillary)
What are the branches of the pterygopalantine part of the maxillary artery?
Posterior superior alveolar artery Infra orbital artery Descending palantine artery Pharyngeal artery Artery of pterygoid canal Spenopalantine artery
What are the two branches of the infra orbital artery (branch of maxillary artery)?
Anterior superior alveolar artery
Terminal branches
Where does the spenopalantine artery enter the nasal cavity?
Sphenopalantine foramen
What are the two arteries that come off the Sphenopalantine artery?
Posterolateral nasal branches
Posterior septal branches
