Fig. 2. Comparison of heart rate (beats min–1) in intact (A) and
cardioregulatory-denervated (B) Homarus americanus before
(t0–t10), during
(t11–t20) and after
(t21–t60) the perfusion of a
solution of 2.4 nmol min–1 g–1 body mass of
adenosine or adenine nucleotides. The vertical dashed lines indicate the
infusion period. Data are presented as means ± s.d. (N is
given in the respective graphs). All values under the lines with asterisks at
each end are significantly different from the control value
(P
0.05).