Häbler H J, Jänig W, Koltzenburg M
Physiologisches Institut der Christian-Albrechts-Universität, Kiel, F.R.G.
Neurosci Lett. 1988 Nov 22;94(1-2):119-24. doi: 10.1016/0304-3940(88)90281-9.
We have tested the hypothesis that referred pain of pelvic viscera is elicited by dichotomizing branches of unmyelinated primary afferents projecting via the pelvic nerve to the viscera and through the pudendal nerve to the perineum where pelvic pain is commonly referred to. Using neurophysiological techniques 588 unmyelinated single units projecting into either nerve were recorded in the ventral (n = 228) and dorsal (n = 360) root S2. In each sample only one neurone sent an axon into both nerves. Thus, dichotomizing afferents account for less than 0.5% of the afferent neurones and appear to be an unlikely explanation for referred pain in this body area.
我们已经验证了这样一种假设，即盆腔内脏牵涉痛是由无髓鞘初级传入神经的分支二分法引起的，这些分支通过盆神经投射到内脏，并通过阴部神经投射到会阴部，而盆腔疼痛通常会牵涉到该部位。使用神经生理学技术，在S2腹侧（n = 228）和背侧（n = 360）神经根中记录了588个投射到任一神经的无髓鞘单个单位。在每个样本中，只有一个神经元将轴突发送到两条神经中。因此，二分法传入神经占传入神经元的比例不到0.5%，似乎不太可能是该身体部位牵涉痛的原因。
