[Spontaneous discharges of muscle receptors of different functional types].
Characteristics of discharges as well as presence or absence of spontaneous impulse activity (SIA) were studied in 473 receptors of deafferented muscles in anesthetized cats. The SIA was absent in majority of Golgi's organs, pressor receptors, and in elementary dynamic and static receptors of muscle spindles. The SIA probability is particularly high in spindle receptors of phasic-tonic type. Absence or presence of the SIA is one of criteria for identifying the type of receptors. Among the universal receptors of dynamic and position types, the SIA probability increases along with enhancement of the static response. The soleus muscle possesses a lesser amount of units with SIA than the m. triceps. Absence or presence of the SIA seem to depend on different ways of connection between sensitive terminals and the intrafusal fibers of the spindles which have been initially stretched in a relaxed muscle.
D000222:Adaptation, Physiological; D000818:Animals; D002415:Cats; D004594:Electrophysiology; D008465:Mechanoreceptors / Q000502:physiology*; D009470:Muscle Spindles / Q000502:physiology; D009132:Muscles / Q000294:innervation*; D011434:Proprioception
Spontannye razriady myshechnykh retseptorov raznykh funktsional'nykh tipov.