alterations in the ultrastructure of the myocardium and hypothalamus in `` '' nonemotional '' '' rats were less marked and consisted in the appearance of the areas of overcontraction of myofibrils , enlargement of sarcoplasmic reticulum caverns , and in an increase in the lipid content in cardiomyocytes .
C0027061
myocardium
C0225828
cardiomyocyt