Kaleczyc J, Majewski M, Całka J, Lakomy M
Department of Animal Anatomy, Agricultural and Technical Academy, Olsztyn, Poland.
Folia Histochem Cytobiol. 1993;31(3):117-23.
The distribution of adrenergic nerve fibres in the urethra and some organs of the male reproductive system of juvenile boars was studied by applying the glioxylic acid-induced fluorescence method. Adrenergic nerve fibres were found in all structures examined, with particular relation to their muscular coats and arterial blood vessels. Ductuli efferentes and ductus epididymidis from the caput region were weakly innervated. The number of adrenergic nerve fibres innervating the ductus epididymidis gradually increased towards the cauda epididymidis, being greatest in this region. The vas deferens was very well supplied with these nerves. The seminal vesicle was found to be the richest innervated organ in comparison with other accessory genital glands. The body of the prostate was slightly weaker innervated, while the disseminated part of the prostate as well as the bulbourethral gland comprised the smallest number of adrenergic nerve fibres. The urethra received a very dense adrenergic nerve supply. The pelvic part of the urogenital duct possessed a moderate number of adrenergic nerves, which supplied not only the muscular membrane but also venous sinuses of the mucosa. In a close vicinity to the internal genital organs numerous ganglia containing both adrenergic and non-adrenergic nerve cell bodies were observed. The presented data suggest that adrenergic innervation may be deeply involved in the control of blood flow and motor function of the organs studied, and that a part of adrenergic nerve fibers innervating these structures may originate from pelvic ganglia.
应用胶质酸诱发荧光法，研究了幼年公猪尿道及雄性生殖系统一些器官中肾上腺素能神经纤维的分布。在所检查的所有结构中均发现了肾上腺素能神经纤维，尤其与它们的肌层和动脉血管有关。来自附睾头区域的输出小管和附睾管神经支配较弱。支配附睾管的肾上腺素能神经纤维数量向附睾尾逐渐增加，在该区域最多。输精管有丰富的此类神经。与其他附属生殖腺相比，精囊是神经支配最丰富的器官。前列腺体的神经支配稍弱，而前列腺的分散部分以及尿道球腺含有的肾上腺素能神经纤维数量最少。尿道接受非常密集的肾上腺素能神经支配。泌尿生殖管道的盆腔部分有适量的肾上腺素能神经，它们不仅供应肌膜，还供应黏膜的静脉窦。在紧邻内生殖器官处，观察到许多含有肾上腺素能和非肾上腺素能神经细胞体的神经节。所呈现的数据表明，肾上腺素能神经支配可能深度参与所研究器官的血流控制和运动功能，并且支配这些结构的一部分肾上腺素能神经纤维可能起源于盆腔神经节。
