title: The disposition of membrane systems in cardiac muscle of a lobster, Homarus americanus.
mesh_terms: D000818:Animals; D002462:Cell Membrane; D008854:Microscopy, Electron; D008870:Microtubules; D008928:Mitochondria; D008961:Models, Structural; D009132:Muscles / Q000166:cytology*; D009206:Myocardium / Q000166:cytology*; D009210:Myofibrils; D008121:Nephropidae / Q000033:anatomy & histology*; D012508:Sarcolemma; D012519:Sarcoplasmic Reticulum