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Ventilation CORRECT ANSWER Movement of air in from the atmosphere and out from the body to maintain appropriate concentration of O2 and CO2 Primary control= brain stem (central control) --Senses blood pH; decrease in pH -> ventilation is stimulated --Decrease in pH= *acidosis*, results in increase rate and/or depth of breathing Secondary control= peripheral control (PaO2 "sensors" in aortic arch) --Senses PaO2 in blood; decrease PaO2= ventilation stimulated --Chronic PaO2 retainers re...

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The cranial nerves: CORREC T ANSWER-1) Olfactory -- smell 2) Optic -- Sight, not pupil reaction 3) Oculomotor -- pupillary function. flows out of the midbrain (in brain stem) and transverses the transtentorial notch. Dilation of a pupil on the affected side will present w/ increased intracranial pressure 4) trochlear 5) trigeminal -- corneal reflex, chewing 6) abducens 7) Facial 8) vestibulocochlear -- intactness of cranial nerve is tested by Doll's eyes and cold caloric exam 9) glossop...

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"high dose" dopamine causes vasoconstriction and (C) Increase afterload CORRECT ANSWER What is the primary hemodynamic effect of: Dopamine >10 mcg/kg/min (A) Increase preload (B) Decrease preload (C) Increase afterload (D) Decreased afterload (E) Increase contractility (D) Decrease contractility Pulmonary HTN and cor pulmonale;

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