[Ultrastructural aspects of intercostal muscles in patients with COPD].
The studies to the electron microscope have shown that external and internal intercostal muscles present characteristic changes of ultra structural organization in COPD. The diameter of muscle fibers become unequal, sarcolemma shows frequently deep invaginations, having in the near sarcoplasma concentrations of mitochondria and tubes of the system T. Here and there, myocytes appear divided or with sarcomere frequently being in contraction state. Ultra structural changes are more emphasized to the external intercostal muscles, more requested than those internal. In this way, the results show that the intercostal breathing muscle are affected by the chronic obstructive pulmonary disease.
Ispas
Narcisa
N
Spitalul Judeţean de Urgenţă Buzău, Secţia de Pneumoftiziologie 1. narcyis@yahoo.com
D006801:Humans; D007366:Intercostal Muscles / Q000648:ultrastructure*; D008854:Microscopy, Electron; D008928:Mitochondria / Q000648:ultrastructure; D018485:Muscle Fibers, Skeletal / Q000648:ultrastructure; D029424:Pulmonary Disease, Chronic Obstructive / Q000473:pathology*; D012508:Sarcolemma / Q000648:ultrastructure; D012519:Sarcoplasmic Reticulum / Q000648:ultrastructure