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Questions and Answers
What is the name of the opening between the lesser and greater wings of the sphenoid bone, which transmits multiple nerves and veins?
What is the name of the opening between the lesser and greater wings of the sphenoid bone, which transmits multiple nerves and veins?
- Foramen rotundum
- Optic canal
- Foramen ovale
- Superior orbital fissure (correct)
What structure runs medially along the posterior border of the lesser wing of the sphenoid bone and drains into the cavernous sinus?
What structure runs medially along the posterior border of the lesser wing of the sphenoid bone and drains into the cavernous sinus?
- Sphenoid air sinuses
- Foramen lacerum
- Optic canal
- Sphenoparietal venous sinus (correct)
Which opening, situated behind the medial end of the superior orbital fissure, transmits the maxillary nerve from the trigeminal ganglion to the pterygopalatine fossa?
Which opening, situated behind the medial end of the superior orbital fissure, transmits the maxillary nerve from the trigeminal ganglion to the pterygopalatine fossa?
- Optic canal
- Foramen ovale
- Foramen rotundum (correct)
- Superior orbital fissure
What is the name of the large and irregularly shaped opening that lies between the apex of the petrous part of the temporal bone, the sphenoid bone, and the occipital bone?
What is the name of the large and irregularly shaped opening that lies between the apex of the petrous part of the temporal bone, the sphenoid bone, and the occipital bone?
What is the name of the deep depression on the body of the sphenoid bone that lodges the pituitary gland?
What is the name of the deep depression on the body of the sphenoid bone that lodges the pituitary gland?
Flashcards
Superior orbital fissure location
Superior orbital fissure location
Opening between lesser and greater sphenoid wings, passing nerves and veins.
Sphenoparietal venous sinus path
Sphenoparietal venous sinus path
Sinus drains into cavernous sinus, along lesser wing's posterior border.
Foramen rotundum function
Foramen rotundum function
Passage for maxillary nerve from trigeminal ganglion to pterygopalatine fossa.
Foramen lacerum description
Foramen lacerum description
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Sella turcica function
Sella turcica function
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