Trigeminal Nerve - Maxillary Division Flashcards
The maxillary enters what area?
The pterygopalatine fossa
The maxillary enters the pterygopalatine fosse through what structure?
The foreman rotundum (or round foreman)
What type of information does the maxillary division have?
Sensory ONLY
The maxillary division carries information from which areas of the skin?
Skin between the eyes and mouth, over the cheeks and temples.
The maxillary division also carries information from which mucosal areas?
Mucosal lining the maxillary sinuses, nasal conchae, palate, and gingiva (of upper teeth).
What are the four branches of the maxillary division?
Middle meningeal nerve
zygomatic
2-3 ganglionic branches
infraorbital nerve
When is the middle meningeal nerve given off?
Before maxillary division exits the foramen rotundum.
What does the middle meningeal nerve supply?
The meninges of the middle cranial fossa.
How does the zygomatic nerve enter the orbit?
Through the inferior orbital fissure.
The zygomatic nerve gives rise to three branches.
A communicating branch
Zygomaticotemportal nerve
zygomaticofacial nerve
The communicating branch of the zygomatic nerve carries what kind of fibers?
Postganglionic parasympathetic fibers.
The postganglionic parasympathetic fibers of the communicating branch of the zygomatic nerve are from which structure? Where are they traveling to?
The pterygopalatine ganglion,
To the lacrimal gland
The zygomaticotemportal nerve supplies what?
Skin over the temple
The zygomaticofacial nerve supplies what area?
Skin over the cheek.
The 2-3 ganglionic branches carry sensory information from what areas?
The upper pharynx, nasal cavity, and palate.
The 2-3 ganglionic branches carries their information through what structure to the maxillary division?
The pterygopalatine ganglion
The infraorbital nerve travels through which two areas?
The infraorbital fissure and infraorbital canal
What happens to the infraorbital nerve before it enters the infraorbital canal?
Gives off three branches: posterior, middle, and anterior superior alveolar nerves.
These three superior alveolar nerves supply which areas?
Posterior - molars
Middle - premolars
Anterior - incisors
(upper teeth)
The infraorbital nerve supplies which areas? (3)
Lower eyelid
Skin over upper jaw
Maxillary sinus
Branches of the maxillary division of the trigeminal nerve (sensory) are used to distribute what type of fibers from the pterygopalatine ganglion?
Postganglionic parasympathetic fibers.
These postganglionic parasympathetic fibers from the maxillary division are traveling to which area?
The lacrimal gland
What other types of fibers are going to and from and passing through this pterygopalatine ganglion and where do they come from?
1) preganglionic parasympathetic fibers from the facial nerve via the greater perusal nerve
2) postganglionic sympathetic fibers from superior cervical ganglion
3) sensory fibers pass through to CNS
