Innervation of the ureterovesical junction musculature of man

E. Feher, P. Magasi, P. Kontz

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The ultrastructure of the innervation of the human ureterovesical junction was studied. Three different nerve terminals were distinguished among the smooth muscle cells. Nerve processes containing predominantly small granular vesicles (40-60 nm in diameter). Other nerve fibres contained predominantly small round agranular vesicles (30-50 nm in diameter). Processes with large granulated vesicles (80-120 nm in diameter). The first type may be adrenergic, the second cholinergic and the third may originate from the local nerve cells. The gap between the nerve fibres and muscle cells was 300 to 500 nm wide and no synaptic thickenings were observed. This suggests that the transmitter may influence several muscle cells, and the different nerve fibres may directly innervate the smooth muscle cells.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalActa morphologica Academiae Scientiarum Hungaricae
Issue number1-2
Publication statusPublished - Dec 1 1979


ASJC Scopus subject areas

  • Anatomy

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