Fig. 4. Heart rate (beats min–1) of sham operated lobsters 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.
The vertical dashed lines indicate the infusion period. Data are presented as
means ± s.d. All values under the line with asterisks at each end are
significantly different from the control value (P
0.05)
(N is given in the respective graphs).