Other experiments allowed him to  distinguish sensory from motor nerves, establish that urine was  made in the kidneys, and deduce that respiration was  controlled by muscles and nerves.
Outras experiências  lhe permitiram distinguir os nervos sensoriais dos nervos motores, estabelecer que a urina era feita nos rins, e deduzir que a respiração era controlada por músculos e nervos.