INTRINSIC FLUORESCENCE CHANGES IN NERVE TERMINALS EVOKED BY ACTION POTENTIALS AR

Electrical stimulation of the mammalian neurohypophysial infundibular stalk evokes the entry of Nat and Ca2t into the neurosecretory terminals during the action potential. These events, in turn, increase intracellular Ca2t and activate NaK- and Ca-ATPases, prompting the mitochondria to increase oxid