2. Veins of brain intracranial dural venous
sinusesinternl jugular veins of neck.
3. Characterstic features of venous drainage of
brain :
- Does not have arterial pattern.
- Extremely thin walled (absence of muscular
tissue in walls).
- No valves.
- Run in subarachnoid space.
4. Michigan
Neurosurgery
Veins of the Head and Neck
Scalp/Emissary
veins
Facial
veins
Neck
veins
Brain and meningeal
veins
Diploic
veins
Meningeal
veins
Dural
sinuses
Cerebral
veins
Superficial Deep
6. Drain the surface (cortex) of cerebral
hemisphere:
3 groups:
1. Superior cerebral veins
2. Middle cerebral veins
3. Inferior cerebral veins.
7. Superior cerebral veins
- 8 to 12 in number
- Drain- Superolateral and
Medial surface
- Ascends upwards
Arachnoidmater
Subdural space
Superior saggital sinus.
8. Four in number : 2 on each side
- Superficial middle cerebral vein
- Deep middle cerebral vein
10. - Anteriorly, drains into cavernous sinus.
- Posteriorly, communicates with Superior
saggital sinus through superior anastomotic
vein (of Troland).
- With Transverse sinus
via inferior
anastomotic
vein of Labbe.
11. Lies deep in lateral
sulcus.
Joins anterior cerebral
vein to form the basal
vein.
12. Drains :
- Inferior surface,
- Lower parts of medial and superolateral
surfaces.
14. Basal vein of Rosenthal:
- Formed at base of brain
- By union of three veins:
Anterior cerebral vein
Deep middle cerebral
vein
Striate vein
Basal vein terminate
into Great cerebral vein
of Galen
15. Each internal cerebral
vein is formed at
interventricular
foramen of Monro.
Union of three veins:
- Thalamostriate vein
(thalamus and basal
ganglia)
- Septal vein (septum
pellucidum)
- Choroidal vein (choroid
plexus).
16. Two internal cerebral veins joins to form Great
cerebral vein of Galen Straight sinus.
17. Length 2cm
Union of 2 internal cerebral vein
Receives two basal veins
too.
Joins inferior saggital
sinus.
Drains into straight sinus.