Dural Venous Sinuses
Dural Venous Sinuses - Related Videos
07:34
Establishment of a Modified Ferric Chloride-Induced Superior Sagittal Sinus Thrombosis
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2025
This study presents a protocol for establishing a reproducible, minimally invasive rat model of superior sagittal sinus thrombosis induced by ferric chloride, utilizing a silk-suture method in combination with laser speckle contrast imaging and high-resolution ultrasound for evaluation.
08:46
Nose, Sinuses, Oral Cavity and Pharynx Exam
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2023
Source: Richard Glickman-Simon, MD, Assistant Professor, Department of Public Health and Community Medicine, Tufts University School of Medicine, MA This video provides an overview of sinus, nose, and throat examinations. The demonstration begins with a brief overview of the anatomy of the region. The upper third of the nose is bony, and the bottom two-thirds are cartilaginous. Air entering the nares passes through the nasal vestibules and into the narrow passageway between the nasal septum...
06:02
Anatomical Reconstructions of the Human Cardiac Venous System using Contrast-computed Tomography of Perfusion-fixed Specimens
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Cited by 9 •
2013
The objective of this research is to recreate and then access the anatomy of the human cardiac venous system using 3D reconstructions generated from contrast-computed tomography scans.
06:43
Quantitative Analysis and Characterization of Atherosclerotic Lesions in the Murine Aortic Sinus
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Cited by 51 •
2013
We describe procedures to quantify and characterize atherosclerotic lesions in mouse models using precision sectioning of the aortic sinus and ascending aorta combined with histochemical and immunohistochemical analysis.
08:27
Adult Mouse Venous Hypertension Model: Common Carotid Artery to External Jugular Vein Anastomosis.
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Cited by 13 •
2015
We describe a method for creating a reliable model of cerebral venous hypertension in the adult mouse. This model has been widely described and tested in the rat. This new counterpart in the mice opens the possibility of using genetic modified animals and thereby broadens the applications of the model.
FAQs
Their walls are created by separated layers of cranial dura mater rather than by a typical muscular vein. This structure helps keep the channels open as blood moves through the skull. Because the sinuses also lack valves, blood can travel through interconnected pathways toward the internal jugular veins, supporting continuous intracranial drainage.
Without valves, blood is not restricted to one direction by valve leaflets within each channel. Instead, flow can pass through the connected sinus network toward the internal jugular veins. This arrangement allows venous drainage pathways to remain interconnected, which is important when blood from multiple cerebral veins converges before leaving the cranial cavity.
Arachnoid granulations provide sites where cerebrospinal fluid enters the dural venous sinuses. As a result, these channels participate in both venous blood drainage and cerebrospinal fluid removal. Their involvement links fluid circulation around the brain with the cranial venous system, contributing to regulation of intracranial pressure alongside blood outflow.
The superior sagittal, straight, transverse, and sigmoid sinuses form prominent parts of an interconnected route. Cerebral veins deliver deoxygenated blood into this network, which then directs drainage through successive sinus channels toward the internal jugular veins. Examining these connections helps explain how blood collected from different brain regions reaches the neck.
Obstruction or thrombosis interferes with the normal drainage of deoxygenated blood and may also disrupt associated cerebrospinal fluid movement. Because the sinuses provide major intracranial outflow pathways, impaired passage can disturb circulation and pressure regulation within the skull. The overview identifies these conditions as capable of causing serious neurological complications.
Their importance comes from combining two drainage roles: collecting blood from cerebral veins and receiving cerebrospinal fluid through arachnoid granulations. Efficient passage through the interconnected channels supports intracranial circulation and pressure regulation. Conversely, blockage can impair these processes, making the sinus system relevant to understanding neurological consequences of disturbed cranial drainage.