vena cerebri
Học thuậtThân thiện
Definition
Noun: A vena cerebri is any of the several veins that drain deoxygenated blood from the cerebral hemispheres of the brain. These veins are part of the cerebral venous system, carrying blood from the brain's outer regions toward larger venous sinuses.
Usage
The term is used in medical and anatomical contexts to refer specifically to the veins on the surface of the cerebrum. * The surgeon was careful to avoid the vena cerebri during the procedure. * A blockage in a vena cerebri can lead to serious neurological complications.
Advanced Usage
- Superficial cerebral veins: This is a common descriptive category for the vena cerebri, which are often subdivided into superior, middle, and inferior groups based on their location and drainage pathways.
- The vena cerebri anastomose (connect) with each other and with deeper cerebral veins, providing alternative drainage routes.
Variants and Related Words
- Cerebral vein: This is a direct synonym and more commonly used term in general medical English.
- Superior cerebral veins: A specific group of vena cerebri that drain the upper, lateral, and medial surfaces of the cerebral hemispheres.
- Great cerebral vein (of Galen): A major deep cerebral vein; while not a superficial vena cerebri, it is a key part of the broader cerebral venous system.
Synonyms
- Cerebral vein
Related Anatomical Terms (Not Synonyms)
- Arteria cerebri (cerebral artery): These are the arteries that supply oxygenated blood the brain, as opposed to veins which drain blood it.
- Dural venous sinus: The larger venous channels, often within the dura mater, where the vena cerebri ultimately drain.
Noun
- any of several veins serving the cerebral hemispheres of the brain