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Neuro II Unit 1
Stack #64079
| Question | Answer |
|---|---|
| neurons | basic units of the nervous system |
| dendrites | neurons receive input |
| axons | neurons transmit output |
| nerve fiber tracts | form the white matter in the nervous system |
| CNS | brain, brain stem, cerebellum and spinal cord |
| PNS | cranial nerves and spinal nerves |
| Meniges | Dura mater, arachnoid, pia mater |
| dural partitions | flax cerebri, tentorium cerebelli |
| stroke | generic term, loss of blood supply |
| ischemic | deprived of blood, sluggish |
| hemorhagic | caused by bleeding |
| two types of stroke | hemorrhagic, ischemic |
| two types ischemic stroke | thrombotic, emolic |
| thrombotic stroke | atery occluded by a plug of material in a fixed location |
| embolic stroke | no buid up, clot comes from elsewhere |
| larger arteries | typically thrombolytic stroke |
| smaller arteries | typically emolytic stroke |
| TIA | not a stroke if every thing resolves |
| anuerism | a blood vessel bulging out |
| infarct | dead |
| necrotic tissue | dead neurons |
| homonymous hemianposia | lateral geniculate body |
| ischemic stroke within the middle cerebral artery | contral lateral hemiparesis, hemisensory loss, aphasia, perceptual problems |
| ischemic stroke in the anterior cerebral artery | contralateral hemiparesis, mute, indifferent to environment, , little spontaneous activity |
| occlusion of vertebral/basilar arteries | cranial nerve involvement, weakness, sensory loss, vertigo, visual problems, breathing problems, dysarthria, ataxia, coma |