Fall 2006 Neurophysiology Section Exam (PGY 300)

Fall 2006 Neurophysiology Section Exam (PGY 300) - Fall...

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Fall 2006 Neurophysiology Section Exam 1. Which is the NOT true of the Na-K ATPase pump? a) Is primary active transport b) Moves potassium into the cell c) Uses ATP as an energy source d) Moves sodium out of the cell e) Exhibits facilitated diffusion* 2. Of the following, the part of the brain connects the two cerebral hemispheres : a) pons b) cerebellum c) corpus callosum* d) medulla e) thalamus 3. An imaging technique used to view the function of various brain regions is: a) MRI b) CT c) Ultrasound d) electroencephalography e) PET (Positron Emission Tomography)* 4. What is the effect of hyperkalemia on a neuron? a) Depolarization and increase in excitability * b) Depolarization and decrease in excitability c) Hyperpolarization and decrease in excitability d) Hyperpolarization and no change in excitability e) Depolarization and no change in excitability 5. Wernicke’s area is found in what part of the cerebrum? a) primary somatic sensory area b) sensory association area* c) prefrontal association area d) motor association area a) occipital lobe 6. For a neuron at the resting membrane potential (-60 mV), what are the electrical and chemical gradients for potassium (K + ) a) the chemical gradient and the electrical gradient direct potassium into the cell b) the chemical gradient and the electrical gradient direct potassium out of the cell c) the chemical gradient is directed into the cell, the electrical gradient is out of the cell
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Fall 2006 Neurophysiology Section Exam (PGY 300) - Fall...

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