Sphenopalatine Fossa Flashcards
How does the SPF communicate with the infratemporal fossa
pterygomaxillary fissure– transmits the sphenopalatine artery
How does the SPF communicate with the middle cranial fossa
Foramen Rotundum-- transmits V2 Pterygoid Canal (connects to foramen lacerum)--transmits vidian nerve
How does the SPF communicate with the Orbit
Inferior orbital fissure– infraorbital n (branch of V2)
How does the SPF communicate with the nasal cavity
sphenopalatine foramen– transmits nasal n,a,v
How does the SPF communicate with the palate
Greater(and lesser) palatine canals– transmits palatine nerves (V2), arteries and veins
What type of neurons make up the maxillary nerve
Sensory only
What is innervated by the zygomatic nerve
supply skin over lateral orbit
What does the zygomatic nerve communicate with
Has communicating ramus to lacrimal nerve (V1)
What is innervated by the posterior superior alveolar nerve
innervates the molars
What is innervated by the middle superior alveolar nerve
middle teeth
What is innervated by the anterior superior alveolar nerve
The incisors
What is supplied by the palatine nerves
sensory to mucous membranes of soft and hard palate
What is innervated by the nasal nerves
mucous membranes of most of the nasal cavity
What is innervated by the infraorbital nerve
lower eyelid
some skin of the nose
upper lips
What are the two branches of the infraorbital nerve
middle superior alveolar nerve
anterior superior alveolar nerve
Where is the sphenopalatine ganglion located
SPF suspended from the maxillary nerve
Is the sphenopalatine ganglion sympathetic or parasympathetic
Parasympathetic
Where does the sphenopalatine ganglion receive most of its input
nerve of the pterygoid canal = vidian nerve
What are the two components of the Vidian nerve
Greater Petrosal nerve
Deep Petrosal nerve
What nerves are included in the greater petrosal nerve
Taste fibers from palate
preganglionic parasympathetic fibers
What cranial nerve is the greater petrosal nerve a branch of
CN7 Facial
What types of neurons are included in the Deep Petrosal Nerve
postganglionic sympathetic fibers from the carotid nerve plexus
What types of glands are effected by the postganglionic parasympathetic of the sphenopalatine
nasal glands
palatine glands
lacrimal glands
=> all secretomotor
