Abstract
Weight loss and related atrophy is characteristic for all senile tissues. The senile muscle change shows, however, two specific features: (a) it is more marked than that of body weight, (b) it is different in different types of muscles or muscle fibers. The reduction of muscle weight varies in different muscles, some of them being affected relatively very late (for example the deep back muscles). The decrease of muscle weight is due to decrease both in number (1) and diameter (2,3,4) of muscle fibers. On the other hand an increase of incidence of largest fibers diameter was described in the eye muscles and explained as a result of compensatory hypertrophy of myocardium after focal degeneration in some muscle fibers (6).
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Hanzlíková, V., Gutmann, E. (1975). Ultrastructural Changes in Senile Muscle. In: Cristofalo, V.J., Holečková, E. (eds) Cell Impairment in Aging and Development. Advances in Experimental Medicine and Biology, vol 53. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-0731-1_35
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DOI: https://doi.org/10.1007/978-1-4757-0731-1_35
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