Quantification of axial forces in rectum-anal canal of the cat.


A newly developed probe was used to measure in vivo axial forces in the rectum-anal canal of the anesthetized cat. Spontaneous contractions of the smooth muscle of the internal anal sphincter were recorded, as were neurally evoked contractions of striated muscle of the external anal sphincter. Bilateral electrical stimulation (1-10 V, 1-5 Hz, 0.05 ms… (More)


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