Re: Cranial Fossa and Cavernous Sinus

Comments:
: : True False 2010 : : 1. The clivus is part of the sphenoid bone. : F? - formed by occipital bone at its junction w/sphenoid? : : 2. The cavernous sinus has immediate drainages into the superior petrosal sinus, inferior petrosal sinus, basilar venous plexus, sphenoparietal sinus, ophthalmic vein, pterygoid venous plexus, and the intercavernous sinus. : T : : 3. The straight sinus drains directly into the confluence of sinuses. : T : : 4. The basilar venous plexus is continuous with the internal posterior vertebral venous plexus. : F - anterior? : : 5. The lacus lacrimalis : Exists? T. : : True False - 2009 : : 1. The great vein of Galen combines with the inferior sagittal sinus to form the straight sinus. : T : : 2. The emissary veins connect extracranial venous drainages with intracranial venous drainages. : T : : 3. Ligation of the internal jugular veins at the base of the skull does not block intracranial venous drainage. : T : : 4. The inferior sagittal sinus is within the inferior margin of the tentorium cerebelli : F - inferior margin of falx cerebri : : 5. The foramen cecum, when patent, provides a venous communication between the superior sagittal sinus and the nasal cavity. : T : : 6. The anterior free margin of the tentorium cerebelli forms the tentorial notch or incisura. : T : : 7. The superior petrosal sinus passes superior to the trigeminal nerve. : T : : 8. The repeating cascade of symptoms of cavernous sinus infection reflects, in part, spread of infection through the intercavernous sinus. : T : : 9. The intercavernous sinus surrounds the pituitary stalk. : T? Looks like it according to Netter... : : 10. The anterior lip of the chiasmatic groove defines, in part, the boundary between the middle and inferior cranial fossae. : F - between the anterior and middle cranial fossae. Does it matter if we call it chiasmatic or prechiasmatic? : : 11. The turberculum sellae extends from the hypophyseal fossa to the posterior lip of the chiasmatic groove. : T : : 12. The clivus extends from the foramen magnum to the inferior margin of the dorsum sellae. : T : : 13. The lateral walls of the hypophyseal fossa are formed by the medial walls of the cavernous sinus. : T : : 14. The occipital sinus is directly continuous with the anterior internal vertebral venous plexus. : F - posterior : : 15. The basilar venous plexus directly connects with the anterior internal vertebral venous plexus. : T : : 16. The superior orbital fissure marks the anterior boundary of the cavernous sinus. : T : : 17. Structures that pass through the superior orbital fissure become a content of the cavernous sinus. : T

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