Pterygopalatine Fossa Flashcards
What opening is found on the lateral aspect of the pterygopalatine fossa?
Pterygomaxillary fissure
What opening is found on the medial aspect of the pterygopalatine fossa?
Sphenopalatine foramen
The inferior orbital fissure is found in this area of the pterygopalatine fossa
Anterosuperior
What openings are found on the posterior aspect of the pterygopalatine fossa?
Foramen rotundum
Pterygoid canal
Pharyngeal canal
Which opening is the most superior on the posterior aspect of the pterygo palatine fossa?
Foramen rotundum
The palatine canal is found in this area of the pterygopalatine fossa
Inferior
What are the branches of the pterygopalatine portion of the maxillary artery?
Artery of the pterygoid canal Pharyngeal artery Sphenopalatine a. Infra-orbital a. Posterior Superior a. Descending palatine a
What is transmitted through the pterygomaxillary fissure?
Posterior superior n.
Maxillary a.
What is transmitted through the sphenopalatine foramen?
Sphenopalatine a.
Posterior lateral nasal n.
What is transmitted through the foramen rotundum?
CN V2
What is transmitted through the inferior orbital fissure?
Infraorbital n. and a.
Zygomatic n.
The infraorbital continues through this foramen to the face
Infraorbital foramen
The zygomatic nerve sends to branches to where
Face
What are the two branches of the zygomatic n.?
Zygomaticotemporal n.
Zygomaticofacial n.
The pterygoid canal connects these two foramen
Foramen lacerum
Sphenopalatine foramen
What is transmitted through the pterygoid canal?
Artery and Nerve to the pterygoid canal
What are the two branches of the nerve to pterygoid canal?
Deep petrosal
Greater petrosal
Where is the pharyngeal canal located?
Superior/lateral to alae of vomer bone
What does the pharyngeal canal transmit?
Pharyngeal n. and a.
Where is the palatine canal located?
Just lateral to the perpendicualr plate of the vomer, vertically
What does the palatine canal transmit?
Greater and Lesser palatine nn.
Descending palatine a.
What are the two branches of the descending palatine a.?
Greater and lesser palatine aa.
The pterygopalatine fossa is a hub for nerves and arteries that serve this area
Middle face
The pterygopalatine ganglion is attaches to this branch of CN V
Maxillary
What nerve does the pterygoipalatine ganglion receive?
Nerve to pterygoid canal
Only these type of nerve fibers synapse at the pterygopalatine ganglion
Para-sympathetic
What does the nerve to the pterygoid canal supply?
Lacrimal gland
Nasal and palatal glands
The nerve to pterygoid canal gets post gangionic sympathetic fibers from here
Deep petrosal n.
Where does the nerve to pterygoid canal get its preganglionic parasympathetic fibers from?
Greater pertosal n.
