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Superficial Cerebral Veins
The superficial cerebral veins are a group of cerebral veins in the head. The superficial veins of the brain are those veins that are close to the surface of the brain. This group includes the superior cerebral veins, the superficial middle cerebral vein, the inferior cerebral veins, the inferior anastomotic vein and the superior anastomotic vein. The superior group empty into the superior sagittal sinus, and inferior sagittal sinus, and the inferior group empty into the transverse sinuses The transverse sinuses (left and right lateral sinuses), within the human head, are two areas beneath the brain which allow blood to drain from the back of the head. They run laterally in a groove along the interior surface of the occipital bone ... and the cavernous sinuses. References Veins of the head and neck {{circulatory-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cerebral Veins
In human anatomy, the cerebral veins are veins in the cerebral circulation which drain blood from the cerebrum of the human brain. They are divisible into ''external'' (superficial cerebral veins) and ''internal'' ( internal cerebral veins) groups according to the outer or inner parts of the hemispheres they drain into. External veins The external cerebral veins known as the superficial cerebral veins are the superior cerebral veins, inferior cerebral veins, and middle cerebral veins. The superior cerebral veins on the upper side surfaces of the hemispheres drain into the superior sagittal sinus. The superior cerebral veins include the superior anastomotic vein The superior anastomotic vein, also known as the vein of Trolard, is a superficial cerebral vein grouped with the superior cerebral veins. The vein was named after the 18th-century anatomist Jean Baptiste Paulin Trolard. The vein anastomoses wit .... Internal veins The internal cerebral veins are also known as the ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superficial Vein
Superficial veins are veins that are close to the surface of the body, as opposed to deep veins, which are far from the surface. Superficial veins are not paired with an artery, unlike the deep veins, which are typically associated with an artery of the same name. Superficial veins are important physiology, physiologically for cooling of the body. When the body is too hot, the body shunts blood from the deep veins to the superficial veins to facilitate heat transfer to the body's surroundings. Superficial veins are often visible underneath the skin. Those below the level of the heart tend to bulge out, which can be readily witnessed in the hand, where the veins bulge significantly less after the arm has been raised above the head for a short time. Veins become more visually prominent when lifting heavy weight, especially after a period of proper strength training. Physiologically, the superficial veins are not as important as the deep veins (as they carry less blood) and ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superior Cerebral Veins
The superior cerebral veins are several cerebral veins that drain the superolateral and superomedial surfaces of the cerebral hemispheres into the superior sagittal sinus. There are 8-12 cerebral veins. They are predominantly found in the sulci between the gyri, but can also be found running across the gyri. Anatomy Fate The superior cerebral veins drain into the superior sagittal sinus The superior sagittal sinus (also known as the superior longitudinal sinus), within the human head, is an unpaired dural venous sinus lying along the attached margin of the falx cerebri. It allows blood to drain from the lateral aspects of the a ... individually. The anterior veins run at near right angles to the sinus while the posterior and larger veins are directed at oblique angles, opening into the sinus in a direction opposed to the current (anterior to posterior) of the blood contained within it. Additional images File:Slide6Neo.JPG, Meninges and superficial cerebral veins. Deep di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superficial Middle Cerebral Vein
The middle cerebral veins - are the superficial and deep veins - that run along the lateral sulcus. The superficial middle cerebral vein is also known as the superficial Sylvian vein, and the deep middle cerebral vein is also known as the deep Sylvian vein. The lateral sulcus or lateral fissure, is also known as the Sylvian fissure. Superficial middle cerebral vein The superficial middle cerebral vein (superficial Sylvian vein) begins on the lateral surface of the hemisphere. It runs along the lateral sulcus to empty into either the cavernous sinus, or the sphenoparietal sinus. It is adherent to the deep surface of the arachnoid mater bridging the lateral sulcus. It drains the adjacent cortex. Anastomoses At its posterior extremity, the superficial middle cerebral vein is connected with the superior sagittal sinus via the superior anastomotic vein, and with the transverse sinus via the inferior anastomotic vein. Deep middle cerebral vein The deep middle cerebral vein (d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inferior Cerebral Veins
The inferior cerebral veins are veins that drain the undersurface of the cerebral hemispheres and empty into the cavernous and transverse sinuses. Those on the orbital surface of the frontal lobe join the superior cerebral veins, and through these open into the superior sagittal sinus. Those of the temporal lobe anastomose with the middle cerebral and basal veins, and join the cavernous, sphenoparietal, and superior petrosal sinus The superior petrosal sinus is one of the dural venous sinuses located beneath the brain. It receives blood from the cavernous sinus and passes backward and laterally to drain into the transverse sinus. The sinus receives superior petrosal veins, ...es. Image File:Slide6Neo.JPG, Meninges and superficial cerebral veins. Deep dissection. Superior view. References Veins of the head and neck {{circulatory-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inferior Anastomotic Vein
The inferior anastomotic vein (also known as the vein of Labbe) is one of several superficial cerebral veins. It is a large, highly variable vein extending across the lateral hemispheric surface of the temporal lobe to form an anastomosis between the superficial middle cerebral vein and transverse sinus, opening into either at either end. It drains adjacent cortical regions, gathering tributaries from minor veins of the temporal lobe The temporal lobe is one of the four major lobes of the cerebral cortex in the brain of mammals. The temporal lobe is located beneath the lateral fissure on both cerebral hemispheres of the mammalian brain. The temporal lobe is involved in pr .... History It was named after the 19th century French surgeon Charles Labbé (1851–1889), the nephew of the surgeon and politician Léon Labbé (1832–1916). See also * Superior anastomotic vein Additional Images File:Slide6Neo.JPG, Meninges and superficial cerebral veins. Deep dissection. Sup ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superior Anastomotic Vein
The superior anastomotic vein, also known as the vein of Trolard, is a superficial cerebral vein grouped with the superior cerebral veins. The vein was named after the 18th-century anatomist Jean Baptiste Paulin Trolard. The vein anastomoses with the middle cerebral vein and the superior sagittal sinus The superior sagittal sinus (also known as the superior longitudinal sinus), within the human head, is an unpaired dural venous sinus lying along the attached margin of the falx cerebri. It allows blood to drain from the lateral aspects of the a .... Additional images File:Slide6Neo.JPG, Meninges and superficial cerebral veins. Deep dissection. Superior view. File:Slide7Neo.JPG, Meninges and superficial cerebral veins. Deep dissection. Superior view. External links Radiopaedia Definition Veins of the head and neck {{circulatory-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superior Sagittal Sinus
The superior sagittal sinus (also known as the superior longitudinal sinus), within the human head, is an unpaired dural venous sinus lying along the attached margin of the falx cerebri. It allows blood to drain from the lateral aspects of the anterior cerebral hemispheres to the confluence of sinuses. Cerebrospinal fluid drains through arachnoid granulations into the superior sagittal sinus and is returned to the venous circulation. Structure It is triangular in section. It is narrower anteriorly, and gradually increases in size as it passes posterior-ward. It commences at the foramen cecum, through which it receives emissary veins from the nasal cavity. It passes posterior-ward along its entire course. It is accommodated within a groove which runs across the inner surface of the frontal bone, the adjacent margins of the two parietal lobes, and the superior division of the cruciate eminence of the occipital lobe. Near the internal occipital protuberance, it deviates to e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inferior Sagittal Sinus
The inferior sagittal sinus (also known as inferior longitudinal sinus), within the human head, is an area beneath the brain which allows blood to drain outwards posteriorly from the center of the head. It drains (from the center of the brain) to the straight sinus (at the back of the head), which connects to the transverse sinuses. ''See diagram (at right)'': labeled in the brain as "" (for Latin: ''sinus sagittalis inferior''). The inferior sagittal sinus courses along the inferior border of the falx cerebri, superior to the corpus callosum. It receives blood from the deep and medial aspects of the cerebral hemispheres and drains into the straight sinus. Additional images File:Gray568.png, Sagittal section of the skull, showing the sinuses of the dura. File:Human brain dura mater (reflections) description.JPG, Human brain dura mater (reflections) See also * Dural venous sinuses The dural venous sinuses (also called dural sinuses, cerebral sinuses, or cranial sinuses) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transverse Sinuses
The transverse sinuses (left and right lateral sinuses), within the human head, are two areas beneath the brain which allow blood to drain from the back of the head. They run laterally in a groove along the interior surface of the occipital bone. They drain from the confluence of sinuses (by the internal occipital protuberance) to the sigmoid sinuses, which ultimately connect to the internal jugular vein. ''See diagram (at right)'': labeled under the brain as "" (for Latin: ''sinus transversus'' https://www.ncbi.nlm.nih.gov/books/NBK482257] Structure The transverse sinuses are of large size and begin at the internal occipital protuberance; one, generally the right, being the direct continuation of the |
Cavernous Sinuses
The cavernous sinus within the human head is one of the dural venous sinuses creating a cavity called the lateral sellar compartment bordered by the temporal bone of the skull and the sphenoid bone, lateral to the sella turcica. Structure The cavernous sinus is one of the dural venous sinuses of the head. It is a network of veins that sit in a cavity. It sits on both sides of the sphenoidal bone and pituitary gland, approximately 1 × 2 cm in size in an adult. The carotid siphon of the internal carotid artery, and cranial nerves III, IV, V (branches V1 and V2) and VI all pass through this blood filled space. Both sides of cavernous sinus are connected to each other via intercavernous sinuses. The cavernous sinus lies in between the inner and outer layers of dura mater. Nearby structures * Above: optic tract, optic chiasma, internal carotid artery. * Inferiorly: foramen lacerum, and the junction of the body and greater wing of sphenoid bone. * Medially: pituitar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |