Burden H W, Price G T, Renegar R H, Hodson C A
Department of Anatomy and Cell Biology, School of Medicine, East Carolina University, Greenville, NC 27858-4354.
Anat Embryol (Berl). 1990;182(5):499-501. doi: 10.1007/BF00178916.
Bilateral section of either the sensory or motor branch of the pelvic nerve or pudendal nerve was performed in rats on days 8-10 of pregnancy, and the effects on delivery were observed. Bilateral resection of the sensory branch of the pelvic nerve reduced the number of live pups per litter, and increased the number of stillbirths and the number of fetuses retained in utero per litter at day 24. Sectioning motor components of the pelvic nerve, or both motor and sensory components of the pudendal nerve, had no effects on delivery in rats. We conclude that of the peripheral nerves evaluated in this study, only the sensory branch of the pelvic nerve is required for normal vaginal delivery in this species.
在妊娠第8 - 10天对大鼠进行盆腔神经或阴部神经的感觉支或运动支双侧切断，并观察其对分娩的影响。双侧切断盆腔神经感觉支可减少每窝存活幼崽数量，并增加第24天的死产数量和每窝子宫内滞留胎儿数量。切断盆腔神经的运动成分，或阴部神经的运动和感觉成分，对大鼠分娩均无影响。我们得出结论，在本研究评估的外周神经中，该物种正常阴道分娩仅需要盆腔神经的感觉支。
