THE EFFECTS OF SPINDLE AFFERENTS ON NOCICEPTIVE RESPONSES OF CONVERGENT NEURONS IN SPINAL DORSALHORN OF RATS
- VernacularTitle:肌梭传入对脊髓背角会聚神经元伤害性诱发反应的影响
- Author:
Xiaoli FAN
;
Jiye WEI
;
Heng ZHU
- Publication Type:Journal Article
- Keywords:
dorsal horn;
convergent neurons;
spindle afferent;
analgesic effects
- From:Journal of Xi'an Jiaotong University(Medical Sciences)
1982;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
The effects of spindle afferents activated by stretching gastrocnemius on the nociceptive responses of WDR neurons were recorded extracellularly with microelectrode and observed in paralyzed rats. The results indicated that in 51/80, the spindle afferent activity activated by stretching can inhibit nociceptive responses of neurons. 16 out of 80 neurons no effects can be observed, in 13/80 the effects of spindle afferent activity can excite the nociceptive responses of WDR neurons. Among 51 units, which have inhibitory effects induced by stretching muscle, the inhibitory effects induced by instance and bilateral stretching are stronger than that induced by continuous and unilateral stretching. These results suggested that spindle afferent activity is possesaed of analgesic effects.
