dural venous sinuses 🔴🔴 Tributaries

Question 1

Superior Sagittal Sinus (S.S.S.)

Answer 1

1) A vein from the nasal cavity. 2) The sinus communicates through small openings with two or three irregularly shaped venous
lacunae on each side.
➢ Numerous arachnoid villi and granulations project into the lacunae, which also receive the
diploic and meningeal veins.
3) Superior cerebral veins.

Question 2

Inferior Sagittal Sinus

Answer 2

medial surface of cerebral hemispheres.

Question 3

Straight Sinus

Answer 3

From superior cerebellar veins.

Question 4

Sphenopareital Sinus

Answer 4

1. Receives small dural veins.
2. Anterior (frontal) tributary of the
   middle meningeal vein.

Question 5

Cavernous Sinus

Answer 5

1) Superior and inferior ophthalmic veins.
2) Inferior cerebral veins.
3) Sphenopareital sinus.
4) Central vein of the retina.

Question 6

Superior Petrosal Sinus

Answer 6

1) Receives the cerebellar veins.

2) Some inferior cerebral veins.
3) Veins from the tympanic cavity.

Question 7

Inferior Petrosal Sinus

Answer 7

1) Labyrinthine veins.
2) Veins from the pons, medulla oblongata.
3) Inferior cerebellar veins.