Product Code Database
The dural venous sinuses (also called dural sinuses, cerebral sinuses, or cranial sinuses) are vein sinuses (channels) found between the Periosteum and Meninges layers of dura mater in the brain. They receive blood from the cerebral veins, and cerebrospinal fluid (CSF) from the subarachnoid space via arachnoid granulations. They mainly empty into the internal jugular vein. Cranial venous sinuses communicate with veins outside the skull through emissary veins. These communications help to keep the pressure of blood in the sinuses constant.
The major dural venous sinuses included the superior sagittal sinus, inferior sagittal sinus, transverse sinus, straight sinus, sigmoid sinus and cavernous sinus. These sinuses play a crucial role in cerebral venous drainage. A dural venous sinus, in human anatomy, is any of the channels of a branching complex sinus network that lies between layers of the dura mater, the outermost covering of the brain, and functions to collect oxygen-depleted blood. Unlike veins, these sinuses possess no muscular coat.
| Anterior | |
| Sphenoparietal sinuses | Cavernous sinuses |
| Superior and inferior petrosal sinuses | |
| Midline | |
| Superior sagittal sinus | Typically becomes right transverse sinus or confluence of sinuses |
| Inferior sagittal sinus | Straight sinus |
| Typically becomes left transverse sinus or confluence of sinuses | |
| Posterior | |
| Occipital sinus | Confluence of sinuses |
| Right and left transverse sinuses | |
| Lateral | |
| Superior petrosal sinus | Transverse sinuses |
| Sigmoid sinus | |
| Internal jugular vein | |
| Internal jugular vein | |
==Additional images==
|
|
