Transverse tubules in excitation-contraction coupling.
D000818:Animals; D001001:Anura; D003445:Crustacea; D004594:Electrophysiology; D004721:Endoplasmic Reticulum; D066298:In Vitro Techniques; D008854:Microscopy, Electron; D009119:Muscle Contraction; D009132:Muscles / Q000166:cytology*