The number of receptors for calcium ions at the nerve terminals of one endplate.
D000109:Acetylcholine / Q000032:analysis; D002118:Calcium / Q000032:analysis*; D008433:Mathematics; D009411:Nerve Endings / Q000032:analysis*; D009469:Neuromuscular Junction; D009994:Osmolar Concentration; D011950:Receptors, Cholinergic; D011955:Receptors, Drug
D011950:Receptors, Cholinergic; D011955:Receptors, Drug; D000109:Acetylcholine; D002118:Calcium