Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Blocking Na+ channels in the ganglion cell reduced quantal amplitude. A, Quantal amplitude (mean ± SE) calculated from signal and noise in the ganglion cell response (50% contrast) declined significantly with TTX. B, TTX reduced quantal amplitude even when inhibitory amacrine inputs were blocked with STR and PTX. C, Blocking Na+ channels intracellularly in the ganglion cell also reduced the quantal amplitude.
