What are dural venous sinuses?
Areas where the 2 layers of dura (periosteal and meningeal) SEPARATE to form channels
Meningeal coverings from most interior to most exterior
Pia mater, arachnoid, meningeal dura, periosteal dura
Real and potential spaces (interior to exterior)
Subarachnoid (real) -- between pia and arachnoid; subdural (potential) between arachnoid and meningeal dura; epidural (potential) between skull and periosteal dura
Fold of dura between cerebral hemispheres: has superior sagittal and inferior sagittal sinuses
Fold of dura between cerebrum and cerebellum
fold of dura between cerebellar hemispheres
Fold of dura covering pituitary fossa
Which two layers separate to form venous sinuses?
Periosteal and meningeal dura
How many sinuses are there?
Superior sagittal sinus
Inferior sagittal sinus
Where is the confluene of sinuses?
Which vein does venous blood ultimately drain into?
Describe the flow of venous blood in the brain