Which of the following is the MOST accurate statement about CSF?
AFormed by the choroid plexus in the ventricles.
BNormally contains no neutrophils
CpH is less than that of plasma
DRemoval of CSF during dural tap can cause a headache due to the change in pressure.
Which veins communicate with the cavernous sinus?
ARetromolar vein and facial vein
BFacial vein and external jugular vein
CRetromandibular vein and facial vein
DSuperior ophthalmic vein and pterygoid venous plexus
The patient presents with unilateral proptosis and bilateral abducent nerve palsy. What is the most likely cause?
ACavernous sinus pathology
BOrbital cellulitis
COrbital pseudotumor
DOrbital lymphoma
+ 7 more in the PDF
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