Forced vibrations of a circular muscle ring.
D005583:Fourier Analysis; D006321:Heart / Q000502:physiology*; D008433:Mathematics; D008954:Models, Biological; D009130:Muscle, Smooth / Q000166:cytology / Q000502:physiology*; D009206:Myocardium / Q000166:cytology; D011312:Pressure; D016276:Ventricular Function