The innervation of the uterus in Salamandra salamandra (L.) (Amphibia, Urodela). A morphological and biochemical study.
The innervation of the uterus in the ovoviviparous urodele Salamandra salamandra was studied. In whole mount preparations of the thin-walled uterus of pregnant females, a dense adrenergic network was demonstrated using a modified glyoxylic acid fluorescence technique. Based on vesicle type and cytochemical reactivity after chromate/dichromate fixation for electron microscopy at least two types of neural process were distinguished and classified as adrenergic and cholinergic. Both types are preferentially situated above or between the smooth muscles of the uterine tissue. Adjacent to the muscles in the walls of arterioles mainly adrenergic fibers are seen. Using high performance liquid chromatography with electrochemical detection in tissue homogenates of uterus a considerable amount of noradrenaline could be identified. The significance of the dense innervation is discussed with respect to the function of the uterus during pregnancy and birth.[1]References
- The innervation of the uterus in Salamandra salamandra (L.) (Amphibia, Urodela). A morphological and biochemical study. Greven, H., Schindelmeiser, J., Straub, H. Cell Tissue Res. (1983) [Pubmed]
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