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Questions and Answers
Which bones form the boundaries of the pterygopalatine fossa?
Which bones form the boundaries of the pterygopalatine fossa?
How many pterygopalatine fossae are there in the human skull?
How many pterygopalatine fossae are there in the human skull?
Which artery passes through the pterygomaxillary fissure to enter the pterygopalatine fossa?
Which artery passes through the pterygomaxillary fissure to enter the pterygopalatine fossa?
Which nerve passes through the foramen rotundum to enter the pterygopalatine fossa?
Which nerve passes through the foramen rotundum to enter the pterygopalatine fossa?
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What type of sensory fibers does the maxillary nerve supply to the pterygopalatine fossa?
What type of sensory fibers does the maxillary nerve supply to the pterygopalatine fossa?
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Which vessels provide blood supply and venous drainage to the pterygopalatine fossa?
Which vessels provide blood supply and venous drainage to the pterygopalatine fossa?
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Where do the infraorbital nerve, artery, and vein emerge from the pterygopalatine fossa?
Where do the infraorbital nerve, artery, and vein emerge from the pterygopalatine fossa?
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Which nerve branches does the infraorbital nerve give off in the lower orbit?
Which nerve branches does the infraorbital nerve give off in the lower orbit?
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Through which foramen does the sphenopalatine artery, vein, and V2 nerve branches enter the nasal cavity?
Through which foramen does the sphenopalatine artery, vein, and V2 nerve branches enter the nasal cavity?
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Which structures do the arteries, veins, and nerves from the pterygopalatine fossa supply?
Which structures do the arteries, veins, and nerves from the pterygopalatine fossa supply?
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Which nerve, artery, and vein pass through the greater palatine foramen to supply the tissues of the hard palate?
Which nerve, artery, and vein pass through the greater palatine foramen to supply the tissues of the hard palate?
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Which nerve, artery, and vein pass through the lesser palatine foramen to supply the tissues of the soft palate?
Which nerve, artery, and vein pass through the lesser palatine foramen to supply the tissues of the soft palate?
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Which arteries provide blood supply to the tissues of the hard and soft palates?
Which arteries provide blood supply to the tissues of the hard and soft palates?
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Which veins provide a venous drainage route back to the maxillary vein?
Which veins provide a venous drainage route back to the maxillary vein?
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What type of sensory fibers provide pain, temperature, and touch sensation to the tissues supplied by the neurovascular bundles?
What type of sensory fibers provide pain, temperature, and touch sensation to the tissues supplied by the neurovascular bundles?
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Where do the neurovascular bundles proceed from the pterygopalatine fossa?
Where do the neurovascular bundles proceed from the pterygopalatine fossa?
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Which arteries provide blood supply that originated from the maxillary artery?
Which arteries provide blood supply that originated from the maxillary artery?
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Which veins provide a venous drainage route back to the maxillary vein via the pterygoid plexus?
Which veins provide a venous drainage route back to the maxillary vein via the pterygoid plexus?
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What type of fibers provide pain, temperature, and touch sensation to the tissues supplied by the neurovascular bundles?
What type of fibers provide pain, temperature, and touch sensation to the tissues supplied by the neurovascular bundles?
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Which structures receive blood supply from the descending palatine artery and vein?
Which structures receive blood supply from the descending palatine artery and vein?
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Study Notes
Boundaries and Structure of Pterygopalatine Fossa
- The boundaries of the pterygopalatine fossa are formed by the maxilla, pterygoid process, and greater wing of the sphenoid bone.
- There is one pterygopalatine fossa on each side of the human skull.
Arterial and Nerve Supply
- The maxillary artery passes through the pterygomaxillary fissure to enter the pterygopalatine fossa.
- The maxillary nerve passes through the foramen rotundum to enter the pterygopalatine fossa and supplies sensory fibers for pain, temperature, and touch.
Vessels and Nerve Branches
- The pterygopalatine fossa receives blood supply from the maxillary artery and venous drainage from the maxillary vein via the pterygoid plexus.
- The infraorbital nerve, artery, and vein emerge from the pterygopalatine fossa and proceed to the face.
- The infraorbital nerve gives off branches in the lower orbit.
- The sphenopalatine artery, vein, and V2 nerve branches enter the nasal cavity through the sphenopalatine foramen.
Palatal Supply
- The greater palatine foramen transmits the greater palatine nerve, artery, and vein that supply the tissues of the hard palate.
- The lesser palatine foramen transmits the lesser palatine nerve, artery, and vein that supply the tissues of the soft palate.
- The descending palatine artery and vein also supply the hard and soft palates.
- The neurovascular bundles from the pterygopalatine fossa supply structures such as the nasal cavity, palate, and face.
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Description
Test your knowledge on the Pterygopalatine Fossa (PPF) and its general information, blood supply, and sensory functions. Learn about its location, blood supply from the maxillary artery, and general sensory experiences.
