Dural Venous Sinuses

Question 1

The confluence of sinuses is a meeting place for which sinuses? (4)

Answer 1

Superior sagittal, straight, occipital, and transverse

Question 2

Arachnoid granulations are structurally adaptors for transport of CSF from which space to what?

Answer 2

Subarachnoid space to the venous system

Question 3

Where does the inferior sagittal sinus end?

Answer 3

Ends in the straight sinus

Question 4

What forms the straight sinus?

Answer 4

Formed by the union of the inferior sagittal sinus and great cerebral vein

Question 5

What is inside each cavernous sinus?

Answer 5

Internal carotid artery, surrounded by carotid plexus of sympathetic nerve, CN III IV, V1, V2, VI

Question 6

The middle meningeal veins accompany the middle meningeal artery, leave the cranial cavity via foramen spinosum (or ovale), and drain into what plexus?

Answer 6

Peterygoid venous plexus

Question 7

Facial veins make important connections with the cavernous sinus via what vein?

Answer 7

Superior ophthalmic vein-important for spread of infection “danger zone”

Question 8

Lies at the junction of the falx cerebri and the tentorium cerebelli

Answer 8

Straight sinus

Question 9

Curves laterally and forward in the convex outer border of the tentorium cerebelli

Answer 9

Transverse sinus

Question 10

Lies in the superior convex border of the falx cerebri

Answer 10

Superior Sagittal

Question 11

Communicates directly with the ophthalmic veins

Answer 11

Cavernous sinus

Question 12

Becomes continuous with the internal jugular vein at the jugular foramen

Answer 12

Sigmoid

Question 13

What do the superior and inferior petrosal sinus branch off of and drain into?

Answer 13

Branch off by genu where transverse turns into sigmoid sinus; drain into cavernous sinus