Nuerology -- Barron's CCRN Study Guide

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) glossopharyngeal -- swallow/gag 10) Vagus -- pharyngeal/laryngeal movement 11) spinal accessory 12) hypoglossal all of the cranial nerves except nerves 1 and 2 come from where? CORREC T ANSWER-the brain stem 1 and 2 arise from above the brain stem what are the main blood suppliers to the brain? CORREC T ANSWER-basal vertebral - supplies the lower areas and the brain stem Carotids - supplies the upper area (left internal carotid is dominant for most people) brain lobes and their functions: CORREC T AN