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. 1959 Aug;6(1):7-10.
doi: 10.1083/jcb.6.1.7.

Electron microscope study of the human neuromuscular junction

E DE HARVEN, C COERS

Electron microscope study of the human neuromuscular junction

E DE HARVEN et al. J Biophys Biochem Cytol. 1959 Aug.

Abstract

A preliminary electron microscope study of human neuromuscular junction is presented. The biopsy material was taken from the palmarus longus, and fixed routinely in osmium tetroxide and embedded in methacrylate. The structure of the motor endings and the relationship of the synaptic vesicles to the axolemmal membrane are described. The synaptic clefts are filled with an homogeneous material in continuity with the basement membrane covering the muscle fiber. The subneural apparatus is described, and special attention is paid to a vesicular component present in the sarcoplasm of the junctional area, which differs from synaptic vesicles and is presumed to be a derivate of the sarcoplasmic reticulum.

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