sinus transversus
- noun
- /ˈsaɪnəs trænsˈvɜrsəs/
- Specialized
- The sinus transversus collects blood from the brain and drains it toward the sigmoid sinus.
Examples
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Imaging revealed a thrombosis in the patient's right sinus transversus.
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During brain surgery, care must be taken not to damage the sinus transversus.
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The sinus transversus plays a crucial role in venous drainage.
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Each sinus transversus is paired with another.
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The sinus transversus drains blood collected from the brain into the sigmoid sinus.
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During brain surgery, the surgeon must identify the sinus transversus to avoid complications.
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An obstruction in the sinus transversus can lead to increased intracranial pressure.
Synonyms
A channel in the outer layer covering the brain that drains blood from the back of the head
Surface Forms
Morphology
The phrase is compositionally built from 'sinus' (a venous channel) and 'transversus' (oriented transversely), so a learner who knows both constituents can infer it denotes a venous channel running transversely in the dura. Although the wording is medical/Latinized, the modifier–noun logic is transparent and yields the MWE meaning directly from its parts.
Etymology
Sinus transversus comes from old Latin words: sinus means 'a hollow or channel' and transversus means 'across'. Picture a shallow gutter running across the back of the head that collects blood from the brain and sends it away, so the name now refers to the blood channel that drains the brain.