Exam II Word Scramble
|
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
Question | Answer |
Junction between two neurons or neuron & effector organ | Synapse |
Electrical current flows directly from cell to cell | Electrical Synapse |
Neurotransmitters aid in impulse transmission | Chemical Synapse |
Left & Right Hemispheres Frontal, Temporal, Parietal & Occipital Lobes Cerebral Cortex | Cerebrum |
Personality, Motor, Broca's | Frontal Lobe |
Auditory, Wernicke's | Temporal Lobe |
Sensory | Parietal Lobe |
Visual | Occipital Lobe |
Affects Motor speech - Understand words but cannot speak Expressive aphasia | Broca's area |
Affects Ability to understand words and language Receptive aphasia | Wernicke's center |
Affects motor & receptive gone | Global aphasia |
Functional unit of the nervous system | Neuron |
Neurons need an uninterrupted supply of ____ & ____ or they will die --> Brain Dmg | glucose & oxygen |
Support, nourish & protect neurons (four types) | Neuroglia or Glial cells |
Most strokes happen in frontal lobe: Brocca's area | Slurred Speech |
Coordination of muscle movement Maintenance of equilibrium and muscle tone | Cerebellum |
Ipsilateral Control | Same Side |
Dmg. to this part of the brain stem, which controls resp. centers can lead to different respiratory patterns | Pons |
No feedback in this part of the brain - continues to produce CSF (20 mL/hr) | Ventricular System |
Fold in the meninges, Protective Structure Above: Supratentorial Below: Infratentorial | Tentorium |
Prevents toxic substances from entering Permeable to what it needs: glucose, lipids Most Drugs CANNOT permeate | Blood Brain Barrier |
Cranial Nerve: Pupil Control | III. Occulomotor |
Cranial Nerve: Extra ocular eye movement | VI. Abducens |
Cranial Nerve: Gag reflex | IX. Glossopharyngeal |
Cranial Nerve: Involuntary functions of lungs | X. Vagus |
Brain Veins --> | No Valves (go w/gravity) |
Brain Dmg., Deprived O2 --> Brain stem intact, but all content is gone | Persistent Vegetative State (PVS) |
No function of Entire Brain & Brain Stem | Brain Death |
Hypothermia & CNS depressants | Hide brain activity |
Measures: Eyes opening Best verbal Response Best Motor response (best is 15) | Glasgow Coma Scale |
Dmg. or tumor in cerebellum causes --> | loss of balance/coordination |
Produced in the ventricles then moves to subarachnoid space No feedback --> Continuous production 20 mL/day (48 0mL/hr) | CSF |
Low pressure | Venous |
High pressure | Arterial |
(Normal is +) Oculocephalic - Doll's Eyes Oculovestibular | Normal Reflexes |
Ipsilateral dilated pupil | Structural compression on cranial nerve |
Bilateral fixed dilated pupils | Ominous sign |
(Normal is -) Grasp reflex Babinski | Pathologic Reflexes |
Hydrostatic force measured in the brain cerebrospinal fluid compartment Brain tissue "water" - 78% Blood - 12% Cerebrospinal fluid - 10% | Intracranial Pressure |
Normal ICP | <15 mm Hg |
Measures Intracranial Volume ICV = H2O + CSF + CBV (Increase/decrease in one must be compensated for) | Monroe-Kellie Hypothesis |
Manifestations of Increased ICP: 1. Decrease in LOC 2. Headache | Early |
Manifestations of Increased ICP: 3. Vomiting (mid-part of brain) 4. Seizures (Any brain injury is prone to) | Late |
Manifestations of Increased ICP: 5. Chg. in VS (Cushing's Triad) 6. Ocular Chgs. (Pupilary chgs.) 7. Decreased motor function or posturing | Really Late |
Maintenance of Blood flow is critical because of O2 & Glucose demands of the brain - Maintained by Autoregulation | Cerebral Blood Flow |
Alteration in diameter of vessels to maintain constant blood flow to the brain over a wide range in systematic arterial pressure | Cerebral Autoregulation |
For autoregulation, MAP must be btwn: | 50 and 150 mmHg |
DBP + 1/3 Pulse Pressure OR (2(DBP) + SBP)/3 | MAP |
Loss of Cerebral Autoregulation leads to | Increased ICP |
An abnormal flexion that indicates cerebral hemisphere dysfunction | Decorticate posturing |
An abnormal extension that indicates brainstem dysfunction | Decerebrate posturing |
inadequate oxygen delivery to meet cellular oxygen demands | Common to all shock states is |
Created by:
lost little girl
Popular Nursing sets