Cardiovascular responses to stimulation of pulmonary C fibres in the cat: their modulation by changes in respiration.

1. In cats anaesthetized with a mixture of chloralose and urethane, stimulation of pulmonary C fibres by right atrial injections of phenylbiguanide caused, after a latency of about 3 s, a reduction in pulmonary ventilation or apnoea, bradycardia and systemic hypotension, confirming previous work. 2. A decrease in femoral artery perfusion pressure also… (More)