Venous Drainage System

Question 1

what is the venous drainage system?

Answer 1

occurs through an array of sinuses and veins

functions to remove deoxygenated blood, harmful materials and circulate CSF fluid from the brain

Question 2

where are sinuses

Answer 2

btw periosteal and meningeal dural layers, goes with the folds of the meninges

Question 3

what are sinuses

Answer 3

drainage system that lacks valves

Question 4

what are the two different sinuses found

Answer 4

straight superior inferior sagittal sinuses found in the falx cerebri

cavernous sinus drains the opthalmic veins, mainly lower frontal area (shorter route)

Question 5

straight superior inferior sagittal sinus

Answer 5

straight (great cerebral vein and inferior sagittal sinus) to the superior & inferior sinus to the confluence of sinuses to the transverse to the sigmoid to the internal jugular vein

Question 6

cavernous sinus

Answer 6

cavernous (opthalamic vein) to the superior and inferior pertrosal to the internal jugular vein

Question 7

veins

Answer 7

carry blood & CSF out of brain tissue and deposit into dural sinuses

Question 8

superficial veins

Answer 8

superior cerebral veins
superficial middle cerebral veins
inferior cerebral veins
superior anastomotic veins and inferior anastomotic veins (supporting veins)

Question 9

superior cerebral veins

Answer 9

drains superior surface of each hemisphere

to the superior sagittal sinus

Question 10

superficial middle cerebral vein

Answer 10

drains lateral surface of each hemisphere

to the cavernous sinus

Question 11

inferior cerebral veins

Answer 11

drains inferior aspect of each hemisphere

cavernous sinus & transverse sinus

Question 12

superior anastomotic vein

Answer 12

connects superficial middle cerebral vein to superior sagittal sinus

Question 13

inferior anastomotic vein

Answer 13

connects superficial middle cerebral vein to transverse sinus

Question 14

deep veins

Answer 14

anterior cerebral vein
deep middle cerebral vein

subependymal veins –> basal veins of rosenthal, internal cerebral veins, great vein of galen

medullary veins

Question 15

anterior cerebral vein

Answer 15

drains deep middle regions of each hemisphere

to transverse sinus

Question 16

deep middle cerebral veins

Answer 16

drains insular cortex and some deep lateral regions of each hemisphere

to transverse sinus

Question 17

subependymal: basal v of rosenthal

Answer 17

drain medial temporal lobes

to great vein of galen

Question 18

subependymal: internal cerebral v

Answer 18

to great vein or galen

Question 19

subependymal: great v of galen

Answer 19

drain thalamus, periventricular regions

to inferior sagittal sinus and straight sinus