Ultrastructural evidence for disuse atrophy in insect skeletal muscle.
The changes which occur in the ultrastruct of the mesothoracic retractor unguis muscle of the cockroach Periplaneta americana as a result of disuse are described. Breakdown of myofibrils, sarcoplasmic reticulum, and mitochondria are all marked, this degeneration only being apparent 9 weeks after the operation.
D000818:Animals; D001284:Atrophy; D003058:Cockroaches / Q000648:ultrastructure*; D008931:Mitochondria, Muscle / Q000648:ultrastructure; D009132:Muscles / Q000648:ultrastructure; D009210:Myofibrils / Q000648:ultrastructure; D012519:Sarcoplasmic Reticulum / Q000648:ultrastructure