Venous Sinuses and circle of Willis Flashcards
0
Q
Where do the Dural venous sinuses drain into?
A
Internal jugular vein
1
Q
What venous sinus is most important to us as optometrists?
A
The cavernous sinus
2
Q
Where does the cavernous sinus receive blood from?
A
Superior and inferior ophthalmic vein
Superior middle cerebral vein
Sphenoparietal sinus
3
Q
Why is the circle of Willis important?
A
Means of collateral circulation to the base of the brain in the case of obstruction
4
Q
Where does the brain receive its blood supply from?
A
The vertebral and internal carotid arteries
