The cavernous sinu does not communicate with the_____________?
Correct answer: C. External jugular vein
- A. Opthalumic vein
- B. Internal jugular vein
- C. External jugular vein
- D. Pterygoid plexus
Explanation
The cavernous sinus communicates with the orbit through the ophthalmic veins and with the pterygoid plexus through emissary veins. The external jugular vein has no direct communication with it; venous drainage toward the internal jugular occurs through the petrosal sinuses.
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