Term
| What are the boundaries of the pterygopalatine fossa? |
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Definition
- Anterior: posterior surface of maxilla
- posterior: lateral pterygoid plate
- medial: perpendicular plate of the palatine
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Term
| Through what fissure does the pterygopalatine fossa communicate with the infratemoporal fossa? |
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Definition
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Term
| Through what fissure does the pterygopalatine fossa communicate with the orbit? |
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Definition
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Term
| Through what fissure does the pterygopalatine fossa communicate with the nasal cavity? |
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Definition
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Term
| Through what fissure does the pterygopalatine fossa communicate with the palate? |
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Definition
- greater and lesser palatine canals and foramina
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Term
| Through what fissure does the pterygopalatine fossa communicate with the middle crainal fossa? |
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Definition
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Term
| Through what fissure does the pterygopalatine fossa communicate with the pterygoid canal? |
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Definition
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Term
| What is the entrance and exit for V2 in the pterygopalatine fossa? |
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Definition
- enters: foramen rotundum
- exits: inferior orbital fissure to become infraorbital nerve
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Term
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Definition
- Zygomatic n.
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infraorbital n.
- posterior superior alveolar n.
- pterygopalatine n.
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Term
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Definition
- terminal part of maxillary n. before reaching the infraorbital foramen to supply skin of face, it gives off the middle & superior alveolar nerve to the maxillary premolars and the anterior & superior alveolar nerve to teh maxillary incisors and the canine which run within the bone of the all of the maxillary sinus and also supply the mucous membrane of the sinus
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Term
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Definition
| enters via orbit to pterygopalatine fossa and splits into the zygomaticotemporal and zygomaticofacial nerves which are cutaneous to the temple and face |
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Term
| posterior superior alveolar nerve |
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Definition
- arises directly from V2 enters pterygopalatine fossa via posterior superior alveolar formina to supply maxillary molars and mucosa of the maxillary sinus
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Term
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Definition
- connect V2 with pterygopalatine ganglion
- Mainly GSA of V2
- Doesn't synapse in ganglion
- distributed to the pharynx, palate and nasal cavity
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Term
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Definition
- sensory to the roof of the pharnyx
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Term
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Definition
| sensory to the hard palate |
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Term
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Definition
| sensory to the soft palate |
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Term
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Definition
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Term
| nasopalatine n branch of V2 |
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Definition
- sensory to the septum of nasal cavity
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Term
| Structures supplied by them that synapse in the pterygopalatine ganglion |
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Definition
- Lacrimal gland
- roof of the nasopharynx
- palate
- nasal cavity (secretomotor)
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Term
| What non-parasympathetic run, but do NOT synapse in the pterygopalatine ganglion? |
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Definition
- GSA from V2
- Sympathetic fibers in deep petrosal n. (CN7)
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Term
| Branches of the maxillary artery |
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Definition
- infraorbital artery = floor of the orbit to give off superior alveolar artery to the premolars and the anterior superior alveolar artery to the incisors and canine
- Posterior superior alveolar artery = supplies molar teeth
- descending palatine artery= splits into the greater and lesser palatine artery to supply hard and soft palate respectively
- sphenopalatine artery = passes through the sphenopalatine foramen to supply the nasal cavity
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Term
| Random fact: 2nd part of the maxillary artery passes through WHAT opening to enter the pterygopalatine fossa? |
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Definition
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