Mindblown: a blog about philosophy.
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Sinus sinusitis
Inflammation of a sinus, especially a paranasal sinus. It may be caused by various agents, including viruses, bacteria, or allergy. Predisposing factors include inadequate drainage, which may result from presence of polyps, enlarged turbinates, or a deviated septum; chronic rhinitis; general debility; or dental abscess in maxillary bone.
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Uteroplacental sinus
One of the slanting venous channels from the placenta serving to convey the maternal blood from the intervillous lacunae back into the uterine veins.
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Uterine sinus
One of the venous channels in the walls of the uterus during pregnancy.
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Transverse sinus of the pericardium
A channel posterior to the aorta and the pulmonary trunk but in front of the atria.
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Transverse sinus of the dura mater
One of the large, bilateral venous sinuses along the attached margin of the cerebellar tentorium. They receive the superior sagittal and straight sinuses and drain into the sigmoid sinuses and then into the jugular veins.
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Transverse sinus
A sinus that unites the two inferior petrosal sinuses of the cranium.
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Superior sagittal sinus
A large venous sinus along the attached border of the falx cerebri from the crista galli to the internal occipital protuberance, where it joins either the right or left transverse sinuses or both. At its caudal end (at the back of the tentorium cerebelli), the superior sagittal sinus joins the straight sinus to form the…
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Superior petrosal sinus
A venous canal running in a groove in the petrous portion of the temporal bone.
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Sinus of spleen
A large-capacity venous channel in the spleen.
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Sphenoidal sinus
One of the air sinuses that occupy the body of the sphenoid bone and connect with the nasal cavity.
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