dural venous sinuses 🔴temination

Question 1

Superior Sagittal Sinus (S.S.S.)

Answer 1

At the internal occipital protuberance, it deviates to one or the other side (usually the right).
• It continuous with the corresponding transverse sinus. Termination
• At the internal occipital protuberance, it is dilated to form the confluence of the sinuses.

Question 2

Inferior Sagittal Sinus

Answer 2

Terminates at the middle of tentorial notch.
▪ To join the great cerebral vein of Galen to form the
straight sinus.

Question 3

Straight Sinus

Answer 3

Terminates at the level of internal occipital protuberance
▪ Either:
1. Turns to the left to continue as left transverse sinus. OR 2. Fuses with the S.S.S. to form venous confluent.

Question 4

Occipital Sinus

Answer 4

In sigmoid sinus either in one side or both sides.

Question 5

Sphenopareital Sinus

Answer 5

Terminates at into the anterior part of the

cavernous sinus.

Question 6

Cavernous Sinus

Answer 6

Terminates at the apex of petrous part of
temporal bone.
➢ Where it divides into:

1) Superior petrosal sinus. 2) Inferior petrosal sinus.

Question 7

Superior Petrosal Sinus

Answer 7

Ends at the junction of the transverse sinus

and the sigmoid sinus.

Question 8

Inferior Petrosal Sinus

Answer 8

Passes through jugular foramen
▪ Ends in the upper part of the internal jugular vein,
just below the skull.

Question 9

Transverse Sinus

Answer 9

Continues as sigmoid sinus.

Question 10

Sigmoid Sinus

Answer 10

▪ At jugular foramen.

▪ Continues as Internal jugular vein.