
Keywords: شبکیه سارکوپلاسمی مجاورانه; ECC; excitation-contraction coupling; EM; electron microscopy; FEG; field emission gun; jSR; junctional sarcoplasmic reticulum; LTCC; L-type voltage-gated calcium channel; RyR; ryanodine receptor; SR; sarcoplasmic reticulum; SEM; scanning electron micro