[The thermoregulating function of the motor units in the muscles of the pelvic floor of the cat].

An interaction between supraspinal respiratory input and the thermoafferent one in the pelvic floor muscles' motor units depended on the body temperature. The data obtained suggest that the thermoregulatory activity in the pelvic floor muscles affect the so called expulsive acts (defecation etc.) followed by the muscle relaxation.