Spring 2006 Neurophysiology Section Exam (PGY 300)

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

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Spring 2006 Neurophysiology Section Exam 1. The Na-K ATPase is an example of what type of ion transport? a) Primary active transport* b) Secondary Active Transport c) Simple diffusion d) Facilitated diffusion e) symport 2. Of the following, the part of the brain most associated with emotional responses is the : a) pons b) cerebellum c) amygdala* d) medulla e) thalamus 3. An electrical method for localizing the site of epileptiform discharges in the brain is: a) MRI b) CT c) Ultrasound d) electroencephalography* e) IPSP 4. Quabain is a poison that blocks the Na-K ATPase. What long term effect would this poison have on the resting membrane potential of a neuron? a) Depolarize it to about 0 mV* b) Depolarize far above 0 mV c) Hyperpolarize the membrane potential to -90 mV d) Produce no effect on the resting membrane potential e) Produce continuous spiking in the neuron 5. For the common neuron that is at the resting membrane potential (-70 mV), what ion is the membrane most permeable to? a) sodium b) calcium c) magnesium d) potassium* e) the membrane is impermeant
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6. For a neuron at the resting membrane potential (-60 mV), what are the electrical and chemical gradients for sodium (Na + ) a) the chemical gradient and the electrical gradient direct sodium into the cell* b) the chemical gradient and the electrical gradient direct sodium out of the cell c) the chemical gradient is directed into the cell, the electrical gradient is out of the
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This test prep was uploaded on 04/17/2008 for the course PGY 300 taught by Professor Krasney during the Spring '05 term at SUNY Buffalo.

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

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