Abstract
KNOWLEDGE OF ureteral peristalsis has been inadequate because of the low sensitivity of the recording instruments used. The organs under study are small, and conventional instrumentation distorts their function. Although urine is transported through the urinary tract by means of force produced by the peristaltic activity of the smooth muscles of the ureteral wall, the details of hydrodynamics have escaped scrutiny. Sensitive electronic strain gauges are now available to record phasic pressure fluctuations with minimal volume changes. These are used with small-caliber, nonobstructing catheters to avoid retention of urine which complicated previous methods used to record ureteral peristalsis. This development has given new impetus to the study of the physiology and pathophysiology of the upper urinary tract. Experiments with this equipment demonstrate that the activity of the normal ureter is remarkably independent of impulses of neuromuscular origin and it is not influenced by the administration of drugs. Because potassium has
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
