Ultastructural changes in the intercalated disc in exercised rat hearts.
D000818:Animals; D001835:Body Weight; D002454:Cell Differentiation; D005260:Female; D006352:Heart Ventricles; D008854:Microscopy, Electron; D008867:Microtomy; D009206:Myocardium / Q000166:cytology*; D009210:Myofibrils; D009929:Organ Size; D005082:Physical Exertion; D051381:Rats; D012508:Sarcolemma; D013550:Swimming; D013997:Time Factors