Venous

Question 1

Major out flow from intracranial

Answer 1

⭐️ IJV right promnint > than left #️⃣ artery
Others orbital vein and bonus plexus around the VA

Question 2

Collateral SSS

Answer 2

Diploic and scalp veins

Question 3

Drain of venous system

Answer 3

Inferior petrousal ➡️ IJV ➡️ sigmoid

Superior petrosal sinus Terminates ➡️ at sigmoid sinus within 1 cm of the junction of the sigmoid ➡️transverse sinuses( R > L)

Question 4

Vein of labbe

Answer 4

Prominent Dominant side Lt
Is inferior anastamotic vein ➡️ transverse ➡️ sigmoid

Question 5

Rosenthal V

Answer 5

= basal cerebral vein drain ➡️ vein of Galen ➡️ straight sinus ➡️ TS ➡️ SS

Question 6

Trolard

Answer 6

Prominent non dominant right
= superior anastamotic vein drain ➡️ SSS

Question 7

Confluence of sinuses

Answer 7

Other names

torcular Herophili AKA torcula AKA confluens sinuum [TA])
📍 internal occipital protuberance
Collection came from ; occipital sinus , SSS ( cortical vein and trolard) , straight sinus ( inferior sagital , VOg ,

Question 8

VOG drain

Answer 8

pre-central cerebellar v.

● basal vein of Rosenthal

● internal cerebral v.: joined at the foramen of Monro (venous angle) by == anterior septal v. + thalamostriate v.

Question 9

Cavernous sinus

Answer 9

Content

Question 10

triangular space (of Parkinson):🔺

Answer 10

Superior CV III, IV
Lower V1 and VI

Question 11

Inflow Cvrnois sinus

Answer 11

superior & inferior ophthalmic veins

b) superficial middle cerebral veins

c) sphenoparietal sinus

d) superior & inferior petrosal sinus

Question 12

Outflow of cavernous sinus

Answer 12

sphenoparietal sinus

b) superior petrosal sinus

c) basilar plexus (which drains to the inferior petrosal sinus)

d) pterygoid plexus

e) the right and left cavernous sinuses communicate anteriorly and posteriorly via the circular sinus