PSYC 211- Midterm 1 Review

Which of the following best describes the steps that

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Unformatted text preview: g res1ng membrane poten1al of approximately - 70mV 8. Which of the following best summarizes the different phases of the ac1on poten1al? a)  The membrane poten1al reaches the threshold of excita1on of approximately - 60mV Na+ ions rush out of the cell during a depolariza1on phase K+ rushes into the cell during a repolariza1on phase There is a brief overshoot before reaching res1ng membrane poten1al of approximately - 70mV b) The membrane poten1al reaches the threshold of excita1on of approximately - 60mV Na+ ions rush into the cell during a depolariza1on phase K+ rushes out of the cell during a repolariza1on phase There is a brief overshoot before reaching res1ng membrane poten1al of approximately - 100mV c) The membrane poten1al reaches the threshold of excita1on of approximately - 100mV Na+ ions rush into the cell during a depolariza1on phase K+ rushes out of the cell during a repolariza1on phase There is a brief overshoot before reaching res1ng membrane poten1al of approximately - 70mV d) The membrane poten1al reaches the threshold of excita1on of approximately - 60mV Na+ ions rush into the cell during a depolariza1on phase K+ rushes out of the cell during a repolariza1on phase There is a brief overshoot before reaching res1ng membrane poten1al of approximately - 70mV 9. Which of the following best describes the steps that occur at a synapse? a)  An ac1on poten1al reaches the terminal bouton à༎ Cl- channels open to allow Cl- to enter the cell à༎ docked vesicles fuse with the pre- synap1c membrane à༎ ne...
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This document was uploaded on 02/16/2014.

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