14. Which of the following is not true regarding when a neuron is at rest? A. it is not conducting an action potential.
B. more sodium ions (Na+) outside the cell than inside the cell.
C. more potassium ions inside the cell than outside the cell.
D. more sodium ions inside the cell than outside the cell.

Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling

The production of cells during mitosis into specialized function is recombination or differentiation

During which phase does earth see more than half of the moon's surface? 1)first quarter2)third quarter3)waxing gibbous4)waning crescent