transverse sinuses. The sigmoid sinus is a dural venous sinus situated within the dura mater. The sigmoid sinus receives blood from the transverse sinuses, which...
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venous sinuses included the superior sagittal sinus, inferior sagittal sinus, transverse sinus, straight sinus, sigmoid sinus and cavernous sinus. These...
5 KB (477 words) - 06:53, 17 January 2025
cavernous sinus drains by two larger channels, the superior and inferior petrosal sinuses, ultimately into the internal jugular vein via the sigmoid sinus, also...
9 KB (1,057 words) - 13:43, 24 May 2025
bone. They drain from the confluence of sinuses (by the internal occipital protuberance) to the sigmoid sinuses, which ultimately connect to the internal...
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that, groove for sigmoid sinus continues as groove for transverse sinus. Sigmoid sinus Cancer Web: Sigmoid Sulcus "Groove for sigmoid sinus". http://ect.downstate...
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Specific uses include: Sigmoid function, a mathematical function Sigmoid colon, part of the large intestine or colon Sigmoid sinus, two structures that...
588 bytes (112 words) - 10:16, 11 October 2019
The sigmoid colon (or pelvic colon) is the part of the large intestine that is closest to the rectum and anus. It forms a loop that averages about 35–40...
5 KB (558 words) - 14:17, 30 July 2025
into either the sigmoid sinus, or the jugular bulb. It communicates with the basilar venous plexus anteriorly, and the occipital sinus posteriorly (the...
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structures to pass, including the inferior petrosal sinus, three cranial nerves, the sigmoid sinus, and meningeal arteries. The jugular foramen is formed...
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sinus commences around the margin of the foramen magnum by several small venous channels (one of which joins the terminal part of the sigmoid sinus)...
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Base of skull (section Sinuses)
Vestibular aqueduct Chiasmatic groove Middle clinoid process Groove for sigmoid sinus Trigeminal ganglion Middle cranial fossa Anterior cranial fossa Middle...
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the sigmoid sinus becomes the internal jugular vein. Note that a superior petrosal sinus enters the junction of the transverse and sigmoid sinuses. Also...
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Intratentorial From the posterior cavernous sinus, usually draining to the transverse or sigmoid sinuses Vertebral artery (posterior meningeal branch)...
13 KB (1,298 words) - 10:51, 14 January 2025
"sigm-" (e.g. sigmodon, sigmurethra, etc.) Derivative "sigmoid" (e.g. sigmoid sinus, sigmoid colon, sigmoidoscopy, etc.) "the same letter, which the...
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sagittal Straight Confluence of sinuses Lateral Transverse Sigmoid Inferior Occipital Arterial sinuses Carotid sinus Organ-specific spaces Costodiaphragmatic...
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Large intestine (section Sigmoid colon)
rectum. The name sigmoid means S-shaped (see sigmoid; cf. sigmoid sinus). The walls of the sigmoid colon are muscular and contract to increase the pressure...
48 KB (5,684 words) - 09:35, 31 July 2025
formed by the anastomosis of blood from the sigmoid sinus of the dura mater and the inferior petrosal sinus. The internal jugular runs with the common...
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include venous causes (e.g., high riding or dehiscent jugular bulb, sigmoid sinus diverticulum), arterial causes (e.g., cervical atherosclerosis, potentially...
85 KB (8,747 words) - 18:36, 19 July 2025
temporal bone presents a deep, curved groove, the sigmoid sulcus, which lodges part of the transverse sinus; in it may be seen the opening of the mastoid...
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process to its tip, and be separated from the posterior cranial fossa and sigmoid sinus by a mere slip of bone or not at all. They may extend into the squamous...
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border of the temporal bone. It transmits an emissary vein between the sigmoid sinus and the suboccipital venous plexus, and a small branch of the occipital...
5 KB (385 words) - 21:46, 26 May 2025
venous system including the suboccipital venous plexus, occipital sinus and sigmoid sinus. It is not always present, and can have variations of being a single...
2 KB (205 words) - 03:00, 21 November 2021
As intracranial pressure rises, blood is squeezed into the dural venous sinuses, raising the dural venous pressure and resulting in more bleeding from...
28 KB (3,178 words) - 18:59, 18 July 2025
venous sinuses Transverse sinus Confluence of sinuses Marginal sinus Occipital sinus Petrosquamous sinus Sigmoid sinus Superior sagittal sinus Inferior...
50 KB (4,111 words) - 20:02, 4 April 2025
venous sinuses Transverse sinus Confluence of sinuses Marginal sinus Occipital sinus Petrosquamous sinus Sigmoid sinus Superior sagittal sinus Inferior...
5 KB (481 words) - 12:18, 30 October 2023
vein is a vein connecting the suboccipital plexus of veins with the sigmoid sinus. It is clinically significant because it is a possible mode of transportation...
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slower-growing and may involve dural venous sinuses, including the falx cerebri, tentorium cerebelli, or the superior sagittal sinus. Anterior temporal EDH is usually...
34 KB (3,886 words) - 17:01, 17 July 2025
through the labyrinthine vein, which empties into the sigmoid sinus or inferior petrosal sinus. Neurons within the ear respond to simple tones, and the...
21 KB (2,838 words) - 11:03, 21 January 2025
diameter is 10 mm, but may range between 5 and 35 mm. Inferior petrosal sinus Pharyngeal vein Common facial vein Lingual vein Superior thyroid vein Middle...
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travel laterally and inferiorly in an S-shaped curve that forms the sigmoid sinuses which go on to form the two jugular veins. In the neck, the jugular...
20 KB (2,149 words) - 16:01, 17 July 2025