The activity and properties of cholinesterase of the motor end plate in human intercostal muscle were studied in the isolated muscle membrane. This preparation was used because cholinesterase activity of the membrane preparation was localized in the motor end plate without contamination of cholinesterase of other muscle components. Under the experimental conditions, cholinesterase in a human en...

End-plate membrane has been examined at amphibian myoneural junctions by means of transmission electron microscopy of thin tissue sections. The postjunctional membrane exhibits morphologically specialized dense, convex patches which are located superficially facing the axon terminal but do not extend into the depths of the junctional folds. In the specialized regions the plasma membrane is appr...

THE PARAMETERS OF SINGLE FIBRE EMG To detect abnormal neuromuscular transmission, two parameters are analysed: ‘jitter’ as an indicator of irregularity of neuromuscular transmission, and ‘blocking’ as an indicator of failure of transmission (Stålberg and Trontelj 1994). Each lower motor neurone arising from an anterior horn of the spinal cord connects with a number of muscle fi bres via the ter...

THE PARAMETERS OF SINGLE FIBRE EMG To detect abnormal neuromuscular transmission, two parameters are analysed: ‘jitter’ as an indicator of irregularity of neuromuscular transmission, and ‘blocking’ as an indicator of failure of transmission (Stålberg and Trontelj 1994). Each lower motor neurone arising from an anterior horn of the spinal cord connects with a number of muscle fi bres via the ter...

Regarding the motor end plates, the earliest evidence of the formation of such structures was observed in the muscle of foetuses of nine and ten weeks development. At this stage the developing motor end plate consits of several small axons covered on their outer aspect by Schwann cell cytoplasm, while on the inner aspect they are separated by a layer of basement membrane of the myotube with whi...