physiologically , and with ultrastructural and biochemical correlation , the predominant mode of action of neurotoxins relate to one or the other of the major activities of the excitable cell , -- on conductile activity affecting na+ or k+ permeabilities , on output or secretory activities affecting the release of neurotransmitter or on in put generator activities affecting the receptor molecules for transmitter themselves .
C0007634
the
C1327616
secretory