Unformatted text preview: d. Na+ channels being activated, K+ channels being activated 5. Which ion is most permeable while the cell is at rest? a. Acetylcholine b. Potassium c. Calcium d. Magnesium e. sodium 6-7. Why is the Na+/K+ pump referred to as ‘electrogenic?’ How many Na+ ions are pumped out and how many K+ ions are pumped in? The number of charges transported in and out of the cell is unequal. 3 Na+ ions out, 2 K+ ions in 9-10. How does myelin increase conduction velocity? It insulates the axon, increasing membrane resistance and allowing for saltatory conduction....
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- Spring '10
- Physiology, K+ channels, saltatory conduction