Palmieri Giovanni, Cappai Maria Grazia, Costa Giuseppe, Bo Minelli Luisa, Botti Maddalena, Desantis Salvatore, Corriero Aldo, Acone Franca
Department of Animal Biology, Sassari University.
Ital J Anat Embryol. 2006 Jan-Mar;111(1):31-44.
The AA. have studied the nerve component of male copulatory organ and ventral part of female proctodeum in the ostrich. This paper represents the concluding part of the plan of research that aimed to verify some data and hypothesis referred in previous observations. The innervation of the considered districts was always constituted by autonomic and sensitive somatic nerve components. The autonomic innervation was represented by isolated and grouped ganglion cells located along the course of nerve bundles or in the point where different nerve bundles converged. This nerve component was frequently in close connection with the blood vessels. The sensitive somatic innervation was constituted by free and capsulated nerve endings. The latter, always supplied by a typical structure and morphologically classified as Pacini, Pacini-like and genital's corpuscles, could be found either isolated or grouped within the different layers of both the examined anatomical territories. The grouped corpuscles, in particular Pacini's corpuscles, could organize simple and complex flower sprays, opposito-polar corpuscles and poikilomorphous fibres. For the first time the capsule's lamellar organization in Pacini's corpuscles in Birds was documented by means of light microscope. The occurrence of genital corpuscles seemed to be exclusive in the ventral part of female ostrich proctodeum, corresponding to the male site in which lies the copulatory organ.
研究人员对鸵鸟雄性交配器官的神经成分和雌性泄殖腔腹侧部分进行了研究。本文是旨在验证先前观察中提及的一些数据和假设的研究计划的总结部分。所研究区域的神经支配始终由自主神经和躯体感觉神经成分构成。自主神经支配由沿神经束行程或不同神经束汇聚点处的孤立和成群的神经节细胞表示。该神经成分经常与血管紧密相连。躯体感觉神经支配由游离和被囊神经末梢构成。后者总是由典型结构供应，并在形态学上分类为帕西尼小体、类帕西尼小体和生殖小体，可在两个被检查解剖区域的不同层中单独或成群发现。成群的小体，特别是帕西尼小体，可组成简单和复杂的花束、对极小体和异形纤维。首次通过光学显微镜记录了鸟类帕西尼小体中被囊的板层组织。生殖小体似乎仅存在于雌性鸵鸟泄殖腔腹侧部分，对应于雄性交配器官所在的部位。
