Abstract: A measuring head serves for recording high-resolution nuclear resonance measurements in small defined areas of organic tissue of human or animal bodies which are exposed to a homogenous magnetic field. To this end, there is placed upon the body an RF transmitting and receiving device consisting of a helical line 20 with a shielding 23 wherein the shielding (23) is open on at least one end (25) and the helical line 20 is connected at the said end 25 with the shielding 23, and wherein finally the open end 25 forms the application plane 27. Further, methods are proposed for recording high-resolution nuclear resonance spectra by means of such a measuring head 12.