Dural venous sinuses Flashcards
1
Q
What are dural venous sinuses?
A
located at the site of attachment of dural reflections- areas where the meningeal and periosteal layers of the dura mater become separated to form epithelial lined spaces
2
Q
What is the role of the dural venous sinuses?
A
These receive CSF from the arachnoid villi and drain venous blood from the brain
3
Q
Where do the dural venous sinuses drain into?
A
Internal Jugular Vein
4
Q
Name the 10 sinuses
A
superior sagittal sinus straight sinus inferior sagittal sinus cavernous sinus superior petrosal sinus inferior petrosal sinus sigmoid sinus transverse sinus anterior intercavernous sinus posterior intercavernous sinus
5
Q
Why is flow through the cavernous sinus slow?
A
It is traversed by a number of trabeculae that give it a sponge-like appearance
6
Q
What goes through the cavernous sinus? (5 cranial nerves)
A
Oculomotor nerve Trochlear nerve Opthalmic branch of trigeminal (V) Maxillary branch of trigeminal (V) Internal Carotid artery Abducens nerve (remember OTOM CAT)
