Dural Venous Sinuses Practice Questions

Question 1

Which of the following is the MOST accurate statement about CSF?

Accepted Answer

Formed by the choroid plexus in the ventricles.

Answer

Normally contains no neutrophils

Answer

pH is less than that of plasma

Answer

Removal of CSF during dural tap can cause a headache due to the change in pressure.

Question 2

Which veins communicate with the cavernous sinus?

Accepted Answer

Superior ophthalmic vein and pterygoid venous plexus

Answer

Retromolar vein and facial vein

Answer

Facial vein and external jugular vein

Answer

Retromandibular vein and facial vein

Question 3

The patient presents with unilateral proptosis and bilateral abducent nerve palsy. What is the most likely cause?

Accepted Answer

Cavernous sinus pathology

Answer

Orbital cellulitis

Answer

Orbital pseudotumor

Answer

Orbital lymphoma

Question 4

Bleeding as shown in the image is due to which of the following vessels?

Accepted Answer

Bridging veins

Answer

Lenticulostriate artery

Answer

Vertebral artery

Answer

Middle meningeal artery

Question 5

All of the following statements are true regarding cavernous sinus thrombosis EXCEPT:

Accepted Answer

Loss of jaw jerk

Answer

Loss of sensation around the eye

Answer

Sphenoid sinusitis is the most common cause

Answer

Inferior ophthalmic vein can spread infection from dangerous area of face

Question 6

Superficial middle cerebral vein drains into -

Accepted Answer

Cavernous sinus

Answer

Internal cerebral vein

Answer

Great cerebral vein of Galen

Answer

Straight sinus

Question 7

The cranial nerve passing through cavernous sinus is

Accepted Answer

Abducens

Answer

Olfactory

Answer

Facial

Answer

Optic

Question 8

A 25-year-old male presents with a head injury following a motorcycle accident, and a CT scan shows a fracture of the skull. Which bone is most commonly fractured in such injuries?

Accepted Answer

Parietal bone

Answer

Occipital bone

Answer

Temporal bone

Answer

Frontal bone

Question 9

A pregnant woman presents with fever, retroorbital pain, headache, pulsatile proptosis of the right eye, and tinnitus. BP and fundus were normal. Which of the following structures are involved?

Accepted Answer

Abducens nerve, Oculomotor nerve, Internal carotid artery, Cavernous sinus

Answer

Oculomotor nerve, Internal carotid artery, Cavernous sinus

Answer

Abducens nerve, Internal carotid artery, Cavernous sinus

Answer

Abducens nerve, Oculomotor nerve, Internal carotid artery

Question 10

Which of the following drains into the middle meatus except?

Accepted Answer

Lacrimal duct

Answer

Maxillary sinus

Answer

Frontal sinus

Answer

Ethmoidal sinus

Dural Venous Sinuses — MCQs

Dural Venous Sinuses — MCQs

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