Lecture 3 - venous drainage and cerebrum Flashcards
Order of drainage from blood to brain
fine veins in brain -> plial venous plexuses -> cerebral veins -> dural venous sinuses (scalp veins also go to here via emissary veins) -> internal jugular vein -> heart
where are the venous sinuses?
between the periosteal and meningeal layer
what blood do VS recieve
doexygenated from brain and scalp and CSF
what are VS that drian superior and deep structures
superior sagittal sinus
where is the superior sagittal sinus
along superior margain of falx cerebri between dural layers
where does the SS join
transverse sinus (on right side)
what do aracnoid villi do in relation to SS
drain CSF
where is inferior saggital sinus and where does it drain to
along inferior margian of falx cerebri and joins the straight sinus
where does straight sinus sit and drain to
within tentorium cerebelli and into left transverse sinus
where is the transverse sinus
on the left side and continuous with the straight sinus
where do sinuses interconnect
in the central region called the confluens
where does the sigmoid sinus sit and drain into
it is a forward continuation of the transverse sinus and opens into the internal jugular vein
what does the cavernous sinus drain
inferior structures
where is the cavernous sinus?
lateral to the pituitary gland and liked with venous channels
where does the cavernous sinus drain into
the superior (goes into the transverse sinus) and inferior petrosal (internal jugular v)
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