Dural Venous Sinuses Flashcards
(13 cards)
Sinuses play a role in circulation and drainage of _ that protect and bathe brain (2)
Blood
Fluid
There are 15 _ between double folds of dura mater
Dural venous sinus blood filled cavities
Venous sinuses lined by endothelium, but unlike other veins, have no _
Muscular layer
No muscular support so veins very delicate, relying on _ for support
Surrounding tissue
There are two sets of _
Dural venous sinuses
Two sets of dural venous sinuses located (2)
Upper part of skull
Floor of skull
Dural venous sinuses receive blood draining from brain via _ veins (2)
Cerebral
Cerebellar
Dural venous sinuses are crucial to reabsorption of _
CSF
Sinuses are valveless and provide no resistance to _
Spread of infection
Infections of face can spread to brain via connections between _ and _
Face veins
Dural venous sinuses
_ allow spread of infection or cancer cells between body and brain
Valveless connections
Valveless connections between veins around _ and _
Spinal cord
Dural venous sinuses
