THE RELATION OF TRANSPORTATION FORCE TO MOTILITY IN THE COLON OF THE DOG

Abstract

A C pile technique was used to study the correlation between the force acting to displace an object in the colon and the colon motility at that instance. Transportation force was found to be intimately related to the active period, in that it was greatest during the first half of the period. Further analysis revealed the intensity of an active period not necessarily indicative of the quantity or quality of transportation force, and finally that the systolic phase of Type II and Type III contractions is more efficient in exerting a transportation force than are other phases.