Accession Number : AD0620752

Title :   MUSCLE TWITCH TENSION, INFLUENCE OF ELECTRICAL STIMULATING CONDITIONS AT DIFFERENT TEMPERATURES. II. RESULTS FOR NITRATE RINGER'S,

Corporate Author : ILLINOIS UNIV URBANA BIOPHYSICAL RESEARCH LAB

Personal Author(s) : Kelly,Elizabeth ; Fry,William J.

Report Date : 13 AUG 1963

Pagination or Media Count : 9

Abstract : An investigation was pursued to correlate the findings of previous investigators on the effect of solutions, such as nitrate Ringer's, on the amplitude of twitch tension at high temperature, with values of the parameters which they employed for electrical stimulation. It was observed that a muscle stimulated in chloride Ringer's by a single stimulus, which elicited the maximum response capability of the muscle for the specific environmental conditions, did not show any large increase in amplitude of tension in nitrate Ringer's. An increase in the amplitude of twitch tension in nitrate Ringer's was observed only when the peak twitch tension of the muscle in chloride Ringer's was inadequate, due either to the choice of stimulus pulse duration or to curarization. (Author)

Descriptors :   (*MUSCLES, CONTRACTION), NITRATES, AMPHIBIANS, STIMULATION(PHYSIOLOGY), CHLORIDES, MUSCULOSKELETAL SYSTEM, TEMPERATURE

Distribution Statement : APPROVED FOR PUBLIC RELEASE