Fig. 3.

Peak pressor and cardioaccelerator responses to tendon stretch in 9 rats whose hindlimbs were freely perfused (A) and in 9 other rats whose femoral arteries were ligated 72 h before the start of the experiment (B). Note that control represents the responses to stretch before TTX (1 μM) was applied to the pool surrounding the dorsal roots. Likewise, TTX represents the responses to stretch while TTX (1 μM) was applied to the pool surrounding the dorsal roots, and recovery represents the responses after TTX was removed from the dorsal roots. *The peak response was significantly greater than its corresponding baseline (P < 0.05). †The peak response was significantly less (P < 0.05) than its corresponding control value.