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Figure 3


Fig. 3. Comparison of heart rate in intact (black bars) and cardioregulatory-denervated (grey bars) Homarus americanus. Values are the differences between the mean value of the control period and the value at t20 during the perfusion of a solution of 2.4 nmol min–1 g–1 body mass of adenosine or adenine nucleotides. t20 corresponds with the end of the infusion. Data are presented as means ± s.d. An asterisk denotes a value significantly different from the control value (P<=0.05). [N=9 (intact) and 10 (cardioregulatory denervated) for adenosine; 7 and 5 for AMP; 6 and 0 for ADP, and 6 and 9 for ATP.]