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Figure 6


Fig. 6. Representative traces showing the effects of intracellular alkalosis (addition of 40 mmol l–1 NH4Cl) and acidosis (removal of NH4Cl) on tension of KCl (50 mmol l–1)- and U-46619-contracted efferent branchial arteries in Hepes buffer. Two NH4Cl exposures, 10 and 30+ min, are shown. Intracellular alkalosis contracts, and acidosis relaxes, KCl-stimulated vessels; these responses are reversed when the vessels are pre-contracted with U-46619. Vertical scale bars = 1 g.





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