This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: of the membrane. 8. The ______________ pumps sodium out and potassium into the cell, restoring ion concentrations to their resting levels. 9. Where is calcium stored in the contractile cells? ________________ 10. Gap junctions allow what cations to pass into the cardiac contractile cells, causing the opening of voltage-gated sodium channels? ________________________ 11. State the voltage-gated channels responsible for the following stages of the action potential in cardiac contractile cells: a. Depolarization ______________________ b. Plateau ______________________ c. Repolarization ______________________ 12. What channels in the autorhythmic cells allow ions to leak in, producing a pacemaker potential? (Quiz section) ______________ 13. What channels in the autorhythmic cells bring about depolarization? _____________....
View Full Document
This note was uploaded on 02/22/2009 for the course BIO 203 taught by Professor Johncabot during the Spring '08 term at SUNY Stony Brook.
- Spring '08