Nerve Terminal ca2+ channels Structurally similar to Nat channels >Functionally similar to Nat channels except >activation occurs at more positive potentials >activation and inactivation much slower than a channe dIs9 Nerve Terminal Ca2+ channels ➢Structurally similar to Na+ channels ➢Functionally similar to Na+ channels except ➢activation occurs at more positive potentials ➢activation and inactivation much slower than Na+ channels