title: Cellular changes in mechanically overloaded heart.
abstract: From the ultrastructural aspects of the myocardial cell in different types of heart overloading, several points concerning the adaptation of the myocardial cell were briefly summarized: the respective role of hypertryphy and hyperplasia in heart enlargement, the nature of the myofibrillar changes; the changes in the volume, number and size of mitochondria, and the dependence of the cellular lesions on the severity of the load.
mesh_terms: D000818:Animals; D006332:Cardiomegaly / Q000473:pathology*; D006965:Hyperplasia; D008854:Microscopy, Electron; D008931:Mitochondria, Muscle / Q000473:pathology; D009206:Myocardium / Q000473:pathology*; D009210:Myofibrils / Q000473:pathology; D051381:Rats