The superficial veins at the dorsal parts of the hemispheres run upward and medially and empty into the large superior sagittal sinus in the upper margin of the falx cerebri.
12.
The superior sagittal sinus is usually divided into three parts : anterior ( foramen cecum to bregma ), middle ( bregma to lambda ), posterior ( lambda to confluence ).
13.
These include superior vena cava syndrome ( SVCS ), and thrombosis of the lateral sinus, superior sagittal sinus, internal jugular vein, or of the Great Cerebral Vein of Galen itself.
14.
The attempt to separate the twins turned out to be very difficult, because their brains not only shared a major vein ( the superior sagittal sinus ), but had fused together.
15.
The transverse sinuses are frequently of unequal size, with the one formed by the superior sagittal sinus being the larger; they increase in size as they proceed, from back to center.
16.
They consist of a superior group that empties into the superior sagittal sinus and inferior sagittal sinus, and an inferior group which empties into the transverse sinuses and the cavernous sinuses.
17.
They consist of a superior group that empties into the superior sagittal sinus and inferior sagittal sinus, and an inferior group which empties into the transverse sinuses and the cavernous sinuses.
18.
Since the subarachnoid space around the brain and spinal cord can contain only 135 to 150 ml, large amounts are drained primarily into the blood through arachnoid granulations in the superior sagittal sinus.
19.
The transverse sinuses are of large size and begin at the internal occipital protuberance; one, generally the right, being the direct continuation of the superior sagittal sinus, the other of the straight sinus.
20.
The superior sagittal sinus receives the superior cerebral veins, veins from the diplo?and dura mater, and, near the posterior extremity of the sagittal suture, veins from the pericranium, which pass through the parietal foramina.
