The capability of a nerve terminal to rapidly and dramatically produce very large changes in calcium levels is most dependent on the:

The capability of a nerve terminal to rapidly and dramatically produce very large changes in calcium levels is most dependent on the:

The capability of a nerve terminal to rapidly and dramatically produce very large changes in calcium levels is most dependent on the:





  1. presence of calcium-selective ion channels.
  2. enormous gradient of calcium across the membrane.
  3. fact that calcium is a positively charged ion.
  4. fact that calcium is a divalent cation.
  5. All of the above are essential for producing large, rapid concentration changes.

Answer: 2