Stretch-evoked potentiation of responses of muscle spindles in the cat.
نویسنده
چکیده
منابع مشابه
Stretch-induced contraction of intrafusal muscle in cat muscle spindle.
Measurements of tension, stiffness, and sarcomere length of intrafusal muscle during ramp stretch of isolated muscle spindles have revealed a stretch-induced contraction of the bag1 fiber. This behavior can account for the very high sensitivity of primary endings to stretch as well as the enhanced sensitivity evoked by dynamic fusimotor stimulation.
متن کاملThe effect of pinna reflex and dynamic stretch on spike discharge of single ?-axons and spindle afferents in caudal muscle spindles in rat
The ?-axons supplying muscle spindle (MS) induce a particular pattern of activity in spindle Ia and II afferents on contraction. From a dynamic viewpoint, the Ia shows increasing spike rates, but II-afferents do not show any activity. For evaluation of nerve fiber activity, spike amplitude (SA) is suggested to measure it as well as its benefit of diagnosing clinical symptoms. This paper aims to...
متن کاملThe effect of pinna reflex and dynamic stretch on spike discharge of single ?-axons and spindle afferents in caudal muscle spindles in rat
The ?-axons supplying muscle spindle (MS) induce a particular pattern of activity in spindle Ia and II afferents on contraction. From a dynamic viewpoint, the Ia shows increasing spike rates, but II-afferents do not show any activity. For evaluation of nerve fiber activity, spike amplitude (SA) is suggested to measure it as well as its benefit of diagnosing clinical symptoms. This paper aims to...
متن کاملSENSORIMOTOR CONTROL OVER FUSIMOTOR NEURONS OF THE TENUISSIMUS MUSCLE IN THE A NESTHETIZED CAT: A QUALITATIVE PRIMARY AFFERENT RECORDING
Cortical control of the sensory output of muscle spindles was studied in thirteen anesthetized cats in the present experiment. Gamma motoneuron activity was monitored during electrical stimulation of the sensorimotor cortex while recording from single primary afferents from the tenuissimus muscle. Findings are as follows: 1. The state of anesthesia is crucial in obtaining reproducible resu...
متن کاملSome effects of receptor muscle contraction on the responses of slowly adapting abdominal stretch receptors of the crayfish.
It has been known for many years that stimulation of the motor nerves to vertebrate muscle spindles leads to an increase in the frequency of discharge of the receptor afferent when the muscle is at a constant length (Matthews, 1933; Leksell, 1945; Kuffler, Hunt & Quilliam, 1951). Recently it has been found in muscle-spindle primary endings of cat and rabbit (Matthews, 1962; Emonet-Denand, Lapor...
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عنوان ژورنال:
- Brain research
دوره 88 2 شماره
صفحات -
تاریخ انتشار 1975