What is vein of Trolard?
What is vein of Trolard?
The vein of Trolard, or the superior anastomotic vein, is the primary connecting midline afferent and usually enters into the SSS in the postcentral region. Inferior cerebral veins are cortical bridging veins that primarily channel into the basal sinuses or the deep venous system.
What is anastomotic vein?
The superior anastomotic vein (or vein of Trolard) is the largest superficial vein on the lateral surface of the parietal or frontal lobe that connects the superior sagittal sinus and the superficial middle cerebral vein (of Sylvius). It usually runs in the post-central sulcus draining the adjacent cortex.
What does the vein of Labbe do?
The vein of Labbe, or inferior anastomotic vein, is part of the superficial central venous system and drains the temporal lobe and tissue adjacent to the Sylvian fissure. It connects the superficial middle cerebral vein draining into the transverse sinus.
Where is the vein of Labbe?
The vein of Labbé (inferior anastomotic vein) is part of the superficial venous system of the brain. The vein of Labbé is the largest channel that crosses the temporal lobe between the sylvian fissure and the transverse sinus and connects the superficial middle cerebral vein and the transverse sinus.
What is the Torcular Herophili?
The torcular Herophili (confluence of sinuses) is a highly variable structure that constitutes a vital part of the network of dural venous sinuses. The torcular Herophili is defined historically as the intersection of the superior sagittal sinus, the straight sinus, the occipital sinus, and the two transverse sinuses.
How is angular vein formed?
The angular vein is a vein of the face. It is the upper part of the facial vein, above its junction with the superior labial vein. It is formed by the junction of the supratrochlear vein and supraorbital vein, and joins with the superior labial vein.
What anastomosis is located at the base of the brain?
The arterial anastomosis at the base of the brain is termed the circle of Willis (seeE-Fig. 378-1). The two anterior cerebral arteries are connected by the anterior communicating artery.
What is internal jugular?
The internal jugular vein is a paired venous structure that collects blood from the brain, superficial regions of the face, and neck, and delivers it to the right atrium. The internal jugular vein is a run-off of the sigmoid sinus.
What is vein of Galen?
The vein of Galen malformation (also known as VGAM or VOGM) is a rare congenital blood vessel malformation in the brain that develops prenatally. A vein of Galen malformation is a tangled mass of abnormal connection of the arteries and the median prosencephalic vein of Markowski.
What is the main vein in the brain?
Major veins of the brain include the superior and inferior cerebral veins, superficial middle cerebral veins, the great cerebral vein (of Galen), internal cerebral veins, as well as the superior and inferior cerebellar veins.
What is the vein of Galen?
A vein of Galen malformation (VOGM) is a type of rare blood vessel abnormality inside the brain. In VOGM, misshapen arteries in the brain connect directly with veins, instead of connecting with capillaries, which help slow blood flow.
What is torcular?
Definition of torcular : the point at which the four great cranial venous sinuses meet.
What is a cavernous sinus?
The cavernous sinuses are dural venous sinuses that communicate with one another. Each cavernous sinus is flanked laterally by the temporal bone of the skull and inferiorly by the sphenoid bone, with close proximity to the sphenoid sinuses.
What is the angular vein?
Where is the angular vein?
The angular vein (v. angularis) formed by the junction of the supratrochlear and supraorbital veins, runs obliquely downward, on the side of the root of the nose, to the level of the lower margin of the orbit, where it becomes the anterior facial vein.
Is the jugular a vein or an artery?
Jugular vein and carotid artery are the two types of blood vessels found in the neck. Four jugular veins and two carotid arteries can be identified in the neck. Jugular vein drain deoxygenated blood from the brain, face, and neck while carotid arteries supply oxygenated blood to the brain, face, and neck.
Is vein of Galen an AVM?
A vein of Galen malformation (VOGM) is a rare but particularly serious type of arteriovenous malformation (AVM) that develops before birth and is diagnosed in infants and young children.