title: The relationship between motor endplate size and muscle fiber diameter in different muscle groups of the rat.
abstract: To investigate the relationship between motor endplate size and muscle fiber diameter, analyses of 125I-alpha-bungarotoxin autoradiographs and acetylcholinesterase staining were performed in different muscle groups of the rat. These revealed 1) there is a linear correlation between endplate size and fiber diameter in each muscle group, and 2) each muscle group has a characteristic ratio of endplate size to fiber diameter; the ratios were markedly higher in extraocular muscles than in limb muscles.
mesh_terms: D000110:Acetylcholinesterase / Q000378:metabolism; D000818:Animals; D002038:Bungarotoxins; D005260:Female; D006651:Histocytochemistry; D007457:Iodine Radioisotopes; D009045:Motor Endplate / Q000166:cytology* / Q000201:enzymology; D009132:Muscles / Q000166:cytology* / Q000201:enzymology; D009469:Neuromuscular Junction / Q000166:cytology*; D009928:Organ Specificity; D051381:Rats; D011917:Rats, Inbred Lew
chemical_list: D002038:Bungarotoxins; D007457:Iodine Radioisotopes; D000110:Acetylcholinesterase