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Tea大爷 发表于 2012-3-27 00:12:58

什么是ferguson反射？

ferguson反射被分类到分娩镇痛的并发症之一，请各位高手支教呀！这是什么反射？上网查不到呀，书上暂时也没查到。

纳西阿林 发表于 2012-4-2 00:25:16

The Ferguson reflex is an example of positive feedback and the female body's response to pressure application in the cervix or vaginal walls. Upon application of pressure, oxytocin is released and uterine contractions are stimulated (which will in turn increase oxytocin production, and hence, increase contractions even more), until the baby is delivered. The Ferguson reflex occurs in mammals.

Sensory information regarding mechanical stretch of the cervix is carried in a sensory neuron, which synapses in the dorsal horn before ascending to the brain in the anterolateral columns (ipsi and contralateral routes). Via the median forebrain bundle, the efferent reaches the PVN and SON of the hypothalamus. The posterior pituitary releases oxytocin due to increased firing in the hypothalamo-hypophyseal tract. Oxytocin acts on the myometrium, on receptors which have been upregulated by an increasing oestrogen-progesterone ration. This causes myometrial contraction and further positive feedback on the reflex
维基百科

Tea大爷 发表于 2012-8-5 16:41:28

回复 2# 纳西阿林
看得迷迷糊糊，想要专业的翻译师翻译一下啊

大师 发表于 2012-8-12 00:49:16

在第一产程胎儿下降过程中，机械性牵拉子宫颈是正反馈促进内源性催产素的释放，增强了子宫的收缩。当硬膜外阻滞时，抑制了这种反射，子宫收缩减弱。

xyee59 发表于 2012-8-21 12:30:22

回复 1# Tea大爷

The Ferguson reflex is an example of positive feedback and the female body's response to pressure application in the cervix or vaginal walls. Upon application of pressure, oxytocin is released and uterine contractions are stimulated (which will in turn increase oxytocin production, and hence, increase contractions even more), until the baby is delivered. The Ferguson reflex occurs in mammals.
Sensory information regarding mechanical stretch of the cervix is carried in a sensory neuron, which synapses in the dorsal horn before ascending to the brain in the anterolateral columns (ipsi and contralateral routes). Via the median forebrain bundle, the efferent reaches the PVN and SON of the hypothalamus. The posterior pituitary releases oxytocin due to increased firing in the hypothalamo-hypophyseal tract. Oxytocin acts on the myometrium, on receptors which have been upregulated by an increasing oestrogen-progesterone ration. This causes myometrial contraction and further positive feedback on the reflex.

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