Cerebral venous anatomy

The venous system of the brain is characterized by a thin vein, no muscle tissue and no van as the other veins. The blood from the veins of the brain and the brain drain into the dural sinuses and then into the jugular. The cerebral venous includes three important groups of cerebral venous shallow, deep cerebral veins and the posterior fossa vein.

1. The cerebral venous agriculture (cortical veins and sinuses along)

The cerebral venous shallow groove along the cortex is responsible for draining blood from the cerebral cortex and white matter. The vein frontal cortex, occipital peak and into the sinus along, whereas the middle cerebral venous sinus drainage into the side, the middle cerebral vein running along the slot Sylvius to drain into the sinuses and sinus butterfly top hang. Trolard sinus venous connection along with middle cerebral vein. Labbe go veins beneath the temporal lobe along the temporal occipital groove, connecting with cerebral venous sinus between the cave. The veins are the same because there is no class or the valve body so that they can relax to the direction of blood flow will be reversed if the venous sinuses become blocked.

2. The deep cerebral veins

The deep cerebral veins include the Galen vein, veins in the brain, veins background (Rosenthal), vein pattern hill (thalamostriate), vein wall (septal). The deep cerebral venous drainage of deep white matter and basal ganglia in the brain into a vein, then the veins together make up a large vein Galen and straight into the sinus.

3. The veins of the posterior fossa

The veins of the posterior fossa is divided into three main groups: the group on drainage into Galen; previous groups before draining the cerebellum, pons and the medulla; group under flow into the Social Herophile, straight sinus and transverse sinus neighborhood. Generally, the veins of this region finally ended in transverse sinus. Sinus along, sinus and transverse sinus be connected directly at the sinus drainage in the posterior fossa. Therefore, a thrombotic process areas can weaken vein draining most of the brain.

4. The meningeal veins

The meningeal veins, also known as the dural sinuses. The dural sinuses located between two layers of dura, including upper and lower longitudinal sinus, sinusitis and sinus cave caves, rocks above and below the sinus, occipital sinus, straight sinus, transverse sinus and sigmoid. The dural sinus or sinuses are inflamed rules along, and sinus cavity inside the cave.

Sinus along crested near where the venous circulation to the face and nose. This sinus runs along the rear of the dock sickle occipital cerebrum. Here, this cavity with straight sinus and the creation of the confluence Herophile. Sinus drainage along the majority of cortical blood. Due to the continuation of the bone marrow should venous sinus along the vulnerability causes infection or trauma to the face and scalp.

Along the lower sinus: located at the shore of sickle free and receive intravenous brain cortex in both hemispheres of the veins as well as the corpus callosum, poured into the cavity in the back straight.

Straight sinus: run in the grip of sickle cerebellum and brain in the tent between sinus along with the opportunity to save Herophile below, but also be able to take off by pouring directly into the left sinus. Straight sinus venous getting into Galien.

The sinus from where the jugular Herophile to two sections: horizontal section adjacent to the edge of the tent brain and sigmoid segment ran on the mastoid bone. This sinus drainage of blood from the cerebellum, brainstem and the back of the cerebral hemispheres. Due to anatomical structures such, the sinuses can be affected when mastoiditis and otitis media.

Occipital sinus following includes a vertical midline from Herophile opportunity to shore up the back of the foramen magnum and a horizontal section of the hole in each side of the occipital and connect with each bay jugular.

Save Herophile Society: the intersection of the branches to and along the sinus, straight sinus, sinus and the occipital sinus later. Its position is located in the occipital mound.

The cave is two sinus venous structures located near sphenoid. In sinus hang with some important components include the cranial nerves III, IV, VI and V2 at a party, VI nerve and the carotid artery in the sympathetic plexus located in the central part sinus. This sinus drainage of blood from the front of the eye socket and the base of the brain enters the sinus stone top and bottom to finally flow into the jugular vein.

The area's dominant veins as arterial unclear because very rich continuation of the cortical veins. It creates favorable conditions for the spread of blood clots or infections among blood vessels but on the other hand, can help to develop collateral circulation in cases of venous blockages.