Physiology 2130 Study Guide - Final Guide: Voltage-Gated Potassium Channel, Endoplasmic Reticulum, Pacemaker Potential

• School: Western University
• Department: Physiology
• Course: Physiology 2130
• Professor: Paul Gillespie

Document Summary

In a typical nerve cell, the ion that has a higher concentration inside compared to outside is (a) (b) (c) (d) (e) The falling phase (repolarization) of the action potential in a nerve cell depends upon the opening of (a) (b) (c) (d) (e) Answer b voltage-regulated chloride channels voltage-regulated potassium channels voltage-regulated sodium channels chemical-regulated sodium channels chemical-regulated potassium channels. The peak of the action potential of a typical nerve cell does not reach the equilibrium potential for na+ because (a) (b) (c) (d) (e) The na+/k+ pump shuts down during the action potential. K+ is beginning to move out of the cell the na+ voltage gated channels are beginning to close both c and d are correct. The function of atp in a muscle involves all the following except (choose the incorrect answer(s)) (a) (b) (c) (d) (e) Atp none of the above are correct (e)