Fall 2007 Neurophysiology Final Exam (PGY 300)

Fall 2007 Neurophysiology Final Exam (PGY 300) - Final Exam...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Final Exam Questions PGY 300 Fall 2007 1. The part of the brain that sends connecting nerve fibers between the left and right cerebral hemispheres is the: a) pons b) cerebellum c) corpus callosum* d) medulla oblongata e) thalamus 2. Calcium binding to this protein initiates the contractile process in skeletal muscle. a) actin b) troponin* c) tropomyosin d) kinensin e) nicotinic acetylcholine receptor 3. If the transmembrane S4 segment of the sodium channel was mutated so that it contained negatively charged amino acids instead of positively charged amino acids, what change would you might expect in the properties of the channel? a) Allow more positive ions to permeate through the channel b) Allow negative ions permeate through the channel c) Channel would now be activated by positive voltages d) Channel would now be activated by negative voltages* e) Channel conductance would decrease 4. If a neuron is kept depolarized at 0 mV for a second, in what state are voltage- dependent sodium channels most likely to be found ? a)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

Fall 2007 Neurophysiology Final Exam (PGY 300) - Final Exam...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online