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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?
- Sphenoid and palatine bones (correct)
- Maxilla and ethmoid bones
- Temporal and occipital bones
- Frontal and zygomatic bones
How many pterygopalatine fossae are there in the human skull?
How many pterygopalatine fossae are there in the human skull?
- Four
- Two (correct)
- Three
- One
Which artery passes through the pterygomaxillary fissure to enter the pterygopalatine fossa?
Which artery passes through the pterygomaxillary fissure to enter the pterygopalatine fossa?
- Middle meningeal artery
- Superior thyroid artery
- Maxillary artery (correct)
- Facial artery
Which nerve passes through the foramen rotundum to enter the pterygopalatine fossa?
Which nerve passes through the foramen rotundum to enter the pterygopalatine fossa?
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?
Which vessels provide blood supply and venous drainage to the pterygopalatine fossa?
Which vessels provide blood supply and venous drainage to the pterygopalatine fossa?
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?
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?
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?
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?
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?
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?
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?
Which veins provide a venous drainage route back to the maxillary vein?
Which veins provide a venous drainage route back to the maxillary vein?
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?
Where do the neurovascular bundles proceed from the pterygopalatine fossa?
Where do the neurovascular bundles proceed from the pterygopalatine fossa?
Which arteries provide blood supply that originated from the maxillary artery?
Which arteries provide blood supply that originated from the maxillary artery?
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?
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?
Which structures receive blood supply from the descending palatine artery and vein?
Which structures receive blood supply from the descending palatine artery and vein?
Flashcards
Pterygopalatine Fossa Boundaries
Pterygopalatine Fossa Boundaries
The pterygopalatine fossa is bordered by the sphenoid and palatine bones.
Number of Pterygopalatine Fossae
Number of Pterygopalatine Fossae
There are two pterygopalatine fossae in the human skull.
Maxillary Artery's Path
Maxillary Artery's Path
The maxillary artery travels through the pterygomaxillary fissure into the pterygopalatine fossa.
Maxillary Nerve's Path
Maxillary Nerve's Path
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Maxillary Nerve Fiber Type
Maxillary Nerve Fiber Type
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Pterygopalatine Blood Supply
Pterygopalatine Blood Supply
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Infraorbital Nerve Exit
Infraorbital Nerve Exit
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Infraorbital Nerve Branches
Infraorbital Nerve Branches
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Sphenopalatine Foramen Structures
Sphenopalatine Foramen Structures
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Pterygopalatine Structures' Supply
Pterygopalatine Structures' Supply
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Greater Palatine Foramen
Greater Palatine Foramen
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Lesser Palatine Foramen
Lesser Palatine Foramen
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Palate Blood Supply
Palate Blood Supply
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Palate Venous Drainage
Palate Venous Drainage
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General Sensory Fibers of V2
General Sensory Fibers of V2
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Neurovascular Bundle Destination
Neurovascular Bundle Destination
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Maxillary Artery Branches
Maxillary Artery Branches
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Pterygoid Plexus Drainage
Pterygoid Plexus Drainage
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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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