Electrical activity and intraluminal pressures in the lower small intestine of turkeys

The American Journal of Digestive Diseases
G E DukeO A Evanson

Abstract

To study ileal motility, 14 young turkeys were surgically prepared with a fistula and 3 bipolar Ag/AgCl electrodes in the ileum. Electric slow waves were recorded which averaged 0.45 mV in amplitude and 6.1 waves/min in frequency. They seldom waned, had no wave-form characteristic of a particular region of the ileum, and action-potential bursts did not occur at a particular phase of the slow wave. Action potentials, associated with contractions, averaged 0.21 mV in amplitude. An average of 4.0 pressure changes occurrd per minute and their amplitude averaged 16.2 mm Hg. Slow waves apparently were the primary regulators of ileal motility, although another type of activity may also have been involved. The latter activity consisted of intensive action-potential activity associated with high-frequency, high-amplitude contractile activity which appeared to move periodically aborally down the ileum.

References

Nov 1, 1975·The American Journal of Digestive Diseases·G E DukeO A Evanson
Jan 1, 1972·Annual Review of Physiology·A Bortoff
Jan 1, 1972·The American Journal of Physiology·G E DukeO A Evanson
Dec 1, 1969·The American Journal of Physiology·J H Szurszewski
May 1, 1970·The American Journal of Physiology·J H SzurszewskiC F Code
Jun 1, 1968·British Journal of Pharmacology and Chemotherapy·S D Everett

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Citations

Aug 1, 1978·The American Journal of Digestive Diseases·H C Lai, G E Duke
Jan 1, 1987·Comparative Biochemistry and Physiology. C, Comparative Pharmacology and Toxicology·S B ChaplinL A Degernes
Mar 4, 1998·The Proceedings of the Nutrition Society·G E Duke
Mar 9, 1999·The Journal of Experimental Zoology·M E Basha, G E Duke
Jan 1, 1989·The Journal of Experimental Zoology. Supplement : Published Under Auspices of the American Society of Zoologists and the Division of Comparative Physiology and Biochemistry·G E Duke
Aug 8, 2006·The Journal of Veterinary Medical Science·Eiichi YamadaYoshiharu Okamoto
Mar 9, 1999·The Journal of Experimental Zoology·J K Reynhout, G E Duke
Dec 1, 1978·The American Journal of Physiology·M Roche, Y Ruckebusch
Jul 1, 1982·Poultry Science·G E Duke

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