Calcium channel blockers block the movement of calcium _______.Question 19Select one:A.into the cell and decrease heart rateB.out of the cell and decrease heart rateC.out of the cell and increase heart rateD.into the cell and increase heart rate

When the cardiac muscle cell is at rest, the concentration of _____________ is greater on the outside of the cell.Question 5Select one:A.sodiumB.potassium and sodiumC.calciumD.potassiumE.sodium and calcium

Calcium-channel blocking drugs are effective in:Group of answer choicesdecreasing all types of cardiac arrhythmiasreducing cardiac and smooth muscle contractions.reducing the risk of blood clotting.decreasing the attraction of cholesterol into lipid plaques.

Q9. Which one of the following would result in a DECREASE in blood pressure?a) increased heart rateb) increased diameter of blood vesselsc) increase in sympathetic stimulation to the heartd) increase in blood viscosity

he repolarization of cardiac muscle is due to _______.Question 16Select one:A.sodium entering the cellB.potassium entering the cellC.potassium exiting the cellD.sodium exiting the cell

Which of the following does not contribute to maintaining low levels of calcium in resting nerve cells?Group of answer choicesVoltage-gated calcium channelsThe plasma membrane calcium ATPaseThe smooth endoplasmic reticulum calcium ATPaseMitochondria