the myocardium of wistar rats immobilized for 5 , 15 and 30 days was examined by morphometry and stereological methods for evaluating the volumetric and surface density of myofibrils , mitochondria , t system , sarcoplasmic reticulum and for the measurement of the volumetric ratio of different ultrastructures to the density of myofibrils and the surface-volumetric ratio of the main organelles of the cardiomyocyte .
C0027061
myocardium
C0225828
cardiomyocyte