GABA-A receptor activity inhibitory extracellular ligand-gated ion channel activity chloride channel activity plasma membrane ... GABA-A receptor activity inhibitory extracellular ligand-gated ion channel activity chloride channel activity plasma membrane ... chloride ion channel activity neurotransmitter receptor activity dendrite membrane ion transmembrane transport chloride channel ... chloride ion channel activity neurotransmitter receptor activity dendrite membrane ion transmembrane transport chloride channel ...