Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
NURS 350 patho neuro
Neuro concepts 1 of 3
| Question | Answer |
|---|---|
| rupture of this artery --> epidural bleed | middle meningeal artery |
| CSF - how much made each day, how much ciruclating in brain at any time | 600 mL produced by chorioid plexus of pia mater. 130 mL circulating before resorbed into arachnoid villia |
| CSF pressure, properties | 12mmHg, similar to plasma with lower protein count. No RBCs, 0-5 WBCs. protects, lubricates |
| lumbar puncture taken from where | between 3-4th lumbar vertebrae subarachnoid space, ventriculostomy of 3rd or lateral ventrical |
| What % of CO goes to brain, what molecule regulates vasodilation | 20%. C02 is regulator/vasodilator. If cerebral C02 increased-->vasodil to get more blood to brain. Decreased C02 --> vasoCon |
| Cerebral circulation - does blood move forward and backwards? | no, circulation ALWAYS moves forward |
| Which cerebral arter is site of major strokes | middle cerebral artery |
| path of cerbral circulation | internal carotids --> anterior & middle cerebral arteries -->vertebral arteries fuse into basilar artery --> branches to posterior cerebral artery. Both internal caratoids also interconnected with anterior/posterior communicating arteries |
| Circle of Willis | provides back-up circulation by providing interconnections between internal carotid arteries and basilar artery |
| Where does cerebral blood drain | into venous plexuses, dural sinuses then to juglars |
| Most veins in brain located where | located OUTSIDE of skull-->external jugular |
| Venous sinuses located where | located INSIDE skull--> internal jugular |
| occlusion of anterior cerebral artery impacts what region of brain | frontal, parietal lobes (basal ganglia, corpous callosum) |
| condition caused by occlusion of anterior cerebral artery | hemiplegia on contralateral side |
| occlusion of middle cerbral artery is sign of major strokes and affects these regions | frontal, parietal and temporal lobes |
| conditions caused by occlusion of the middle cerebral artery | aphasia in dominant hemisphere, contralateral hemiplegia |
| occlusion of posterior cerebral artery impacts what regions | diencephalon, temporal and occipital lobes |
| conditions caused by occlusion of posterior cerebral artery | visual & sensory loss, contralateral hemiplegia if cerebral peduncles |
| how do we measure cerebral blood flow | MAP between 50-150 mmHg. if below 50, we have diminished flow. Above 150 indicates hyperemic increased blood flow, risk of bleed |
| What can cause increased ICP | tumor, head injury, increased CSF or blood |
| BBB formed by | astrocytes and junctions between endothelial cells of capillaries |
| What transport mechanism used to transport across BBB | active pumps used |
| Clinical procedures for drug admin across BBB | ventriculostomy, intrathecal, lumbar pump |
| in terms of energy mobilization, symp and psym--> | sympathetic mobilizes energy, parasympathetic conserves energy |
Created by:
lorrelaws
Popular Nursing sets