title: Scanning electron microscopy of the heart.
abstract: Dog hearts were studied with the scanning electron microscope. This technique provides a better perspective of the relationships between organelles than can be obtained with other methods. Extensive communications between mitochondria, sarcoplasmic retiuclum, and nuclear envelop were demonstrated; this suggests the presence of a direct pathway between mitochondria and nuclei for the transport of ATP and perhaps other substances.
mesh_terms: D000818:Animals; D002467:Cell Nucleus / Q000648:ultrastructure; D004285:Dogs; D006056:Golgi Apparatus / Q000648:ultrastructure; D008855:Microscopy, Electron, Scanning; D008931:Mitochondria, Muscle / Q000648:ultrastructure; D009206:Myocardium / Q000648:ultrastructure*; D009210:Myofibrils / Q000648:ultrastructure; D012508:Sarcolemma / Q000648:ultrastructure; D012519:Sarcoplasmic Reticulum / Q000648:ultrastructure