How is the morphological aspect of organ aging? (lung, vessesls and heart)

Not all organs age at the same rate. Production of elastase increasing with age, Organs rich in elastic fibers age the fastest. The aging of many organs is characterized by atrophy. Lung : destruction of alveolar elastic fibers. Vessels : calcification and stiffening of the wall of elastic arteries, intimal thickning of aortic wall Heart : decrease of myocardial cell, accumulation of lipofuchsine, and calcifications of aortic and mitral valves