Research Article

Contractile Properties of Esophageal Striated Muscle: Comparison with Cardiac and Skeletal Muscles in Rats

Figure 4

Contractile responses induced by high potassium or caffeine in esophageal, skeletal, and cardiac muscles. Muscle preparations were stimulated with high potassium (a) or caffeine (b). Representative traces of the contractile responses in esophageal, skeletal and cardiac preparations are shown. Similar results were reproducibly obtained in five independent experiments. Underbars indicate the application of high potassium (118.4 mM) and caffeine (20 mM).
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(a)
459789.fig.004b
(b)