Med Neuro Lect12 Word Scramble
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| Question | Answer |
| Where do subarachnoid hematomas occur? | B/w the membranous Arachnoid and the pia mater. |
| Where is a common spot of BL hemorrhaging into the subarachnoid space to pool? | Subarachnoid cisterns (Cisterna Magna, Pentangular Cistern) |
| What subarachnoid cistern covers the circle of Willis? | Pentangular Cistern |
| What is a subarachnoid hematoma a result of? | Rupturing of an aneurysm. |
| 3 most common locations of aneurysms causing subarachnoid hematomas? | 1.Anterior Communicating (30%). 2.Posterior Communicating (25%, can compress CN III). 3.Middle Cerebral A (20%). |
| What increases your risk of an aneurysm? | 1.Collagen disorders (marfans). 2.Smoking. 3.HTN. |
| What percent of people die within 30 days of a ruptured aneurysm? of those that survive, what percent ruptures again? | 45%, 15% |
| Aneurysms result in a weakness in which layer of the artery? | TUNICA MEDIA |
| Where do Intraparenchymal Hemorrhages occur? | W/in the cerebrum of brainstem. Stay confined within that area. |
| Are intraparenchymal hemorrhages caused by aneurysms? | NO, bursting of BV. **often seen in middle cerebral A. |
| Are Intraparenchymal hemorrhages dangerous? | YES, they Inc intracranial pressure and erode tissue. **will start out with headache, then have generalized symptoms, then lose conciousness. |
| What 3 things will a intraparenchymal hemorrhage in the brainstem cause? | 1.Compression of 4th ventricle. 2.Sulcul compression. 3.Compression of the pons against clivus. |
| What is a primary cause of an intraparenchymal hemorrhage in the brainstem? What is this called? | Due to Inc intracranial pressure, the brainstem will be pushed down through foramen magnum, this will tear BV in the brainstem. **called a DURET hemorrhage. |
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WeeG
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