The invention relates to a physiological sensor system for recording electric measuring signals in a magnetic resonance device, comprising at least one measuring electrode, a signal amplifier unit in a shielded housing that is placed in close proximity to a patient and a signal processing unit for preparing the measuring signals. According to the invention, the measuring electrode is connected to the signal amplifier unit via a cable connection. The invention is characterized in that the cable connection comprises a low-ohm conductor, which is connected to the measuring electrode by means of a first electric resistor on a first end and to the signal amplifier unit by means of a resistance between the skin and the measuring electrode. The development of heat caused by an induced current is concentrated on the resistors, so that there is no risk of burning to the patient.