title: Ultrastructural changes in senile atrophy of the orbicularis oculi muscle.
mesh_terms: D000368:Aged; D001284:Atrophy / Q000473:pathology; D001706:Biopsy; D002280:Basal Cell Carcinoma / Q000601:surgery; D004483:Ectropion / Q000601:surgery; D004774:Entropion / Q000601:surgery; D005142:Eyelid Neoplasms / Q000601:surgery; D005260:Female; D006003:Glycogen; D006801:Humans; D008055:Lipids; D008297:Male; D008875:Middle Aged; D008931:Mitochondria, Muscle / Q000473:pathology / Q000648:ultrastructure; D009801:Oculomotor Muscles / Q000473:pathology / Q000601:surgery / Q000648:ultrastructure*; D010860:Pigments, Biological
chemical_list: D008055:Lipids; D010860:Pigments, Biological; D006003:Glycogen