Functional properties of tandem muscle spindles in comparison with those of single muscle spindles in the frog.
D000818:Animals; D001001:Anura; D004553:Electric Conductivity; D009470:Muscle Spindles / Q000033:anatomy & histology / Q000502:physiology*; D009210:Myofibrils / Q000502:physiology; D013710:Tendons / Q000502:physiology