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11 Cards in this Set
- Front
- Back
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what is the pia matter that separates lobes called?
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flax cerebri
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in what meningial layer are the venus sinuses?
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the pia matter.
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name some divisions of the anterior blood supply
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internal carotid, anterior cerebral, anterior communicating, posterior communicating, middle cerebral artery, opthalmic artery,
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name some divisions of the poster blood supply
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vertebral arteries, basalar artery, posterior cerebral, superior cereballar, labyrinthine, anterior inferior cerebellar artery, posterior inferior cerebellar artery
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What is a cavernous sinus thrombosis, what causes it, and what can be affected?
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popping zits around the nose and eye, drain to the cavernous sinus.
CN3, CN4, V1/V2, CN6 and the internal carotid can all be affected. |
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all brain vessels - what meningial layer are they all found in?
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the subarachnoid space.
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what 3 kinds of hematomas are possible, and what are hematomas?
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they're blood clots due to hemmorage.
they can be epidural subdural subarachnoid |
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epidural hematoma - what artery is injured? of what artery is that a branch? what is a typical scan sign?
what landmark on the skull does this usually happen near? |
epidural hematoma = MIDDLE MENINGEAL artery, a branch of the EXTERNAL CAROTID (specifically, a branch off the maxillary A).
it runs between the calvaria and the dura matter. see a 'lense shape' CT scan of the brain being squished to the opposite side of the injury. happens near pterion! |
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Subdural Hematoma - what vessel(s) are torn? Where does the blood go?
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Tearing of bridging veins between the dura and arachnoid, invents a space between them. Bridging vessels torn.
not teathered - can spread all around the skull. |
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subarachnoid hematoma - what causes it? what's a symptom?
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Usually an aneurism in the circle of willis. Bad headaches are a symptom.
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What is the main cause of subarachnoid hematoma?
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80% = trauma, 15% = circle of willis aneurism
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