The chemically gated channel, NMDA, allows ________ ions entry into the nerve cell. Naim 23:41 Fundamental of the Nervous System and Nervous Tissue The chemically gated channel, NMDA, allows ________ ions entry into the nerve cell. A) Na+ B) K+ C) Ca2+ D) Cl- Answer: C) Ca2+ Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+