ELECTRICAL AND MECHANICAL ACTIVITY OF THE ISOLATED LOWER URINARY TRACT OF THE GUINEA-PIG
β Scribed by STEPHEN M. CALLAHAN; KATE E. CREED
- Book ID
- 117957641
- Publisher
- Nature Publishing Group
- Year
- 1981
- Tongue
- English
- Weight
- 902 KB
- Volume
- 74
- Category
- Article
- ISSN
- 0007-1188
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π SIMILAR VOLUMES
Low calcium concentration in the external medium depolarises the membrane of smooth muscle cells of the ureter and their excitability diminishes. The Ca++ dependent oscillations of the action potential disappears, while the plateau component is more resistent. Analogous reactions are observed by the
Increase of the external K+ concentration depolarises the ureteral muscle membrane and induces, after a transient period of increased spontaneous activity, a tonic contraction. Tetraethylammonium, in concentrations normally required for ganglion blocking activity, does not influence the ureteral act