Infrastructure and Innervation of Water Buffalo (Bubalus bubalis) Seminal Vesicle
作者:
A. Abou-Elmagd,
R. Kujat,
K.-H. Wrobel,
期刊:
Cells Tissues Organs
(Karger Available online 1992)
卷期:
Volume 145,
issue 4
页码: 420-429
ISSN:1422-6405
年代: 1992
DOI:10.1159/000147401
出版商: S. Karger AG
关键词: Water buffalo;Seminal vesicle;Ultrastructure;Innervation
数据来源: Karger
摘要:
The lining epithelium of secretory end pieces and central glandular duct in the seminal vesicle of the water buffalo (Bubalus bubalis) consists of columnar principal and small polymorphous basal cells. A system of intercellular and even intracellular canaliculi enlarges the secretory surface. The most prominent organelle of the columnar principal cells is the granular endoplasmic reticulum forming large aggregates of parallel lamellae. Using antibodies against the neural cell adhesion molecule L1 and the neural marker protein gene product 9.5 (PGP 9.5), the innervation pattern of the seminal vesicle becomes evident. The muscular layer surrounding the propria contains a dense network of unmyelin-ated fibers. Thicker bundles traverse the muscular layer to reach the propria. Around glandular secretory tubules and below the epithelial lining of the glandular duct a tightly woven subepithelial plexus is observed which sends short penetrating branches into the basal zone of the epithelium. These intraepithelial nerves are devoid of Schwann cells and basal lamina (naked axons) and are situated within the intercellular spaces between principal and basal cells. Acetylcholinesterase histochemistry with short (1–2 h) incubation times, dopamine-β-hydroxylase immunohistochemistry and ultrastructural study of transmitter-containing vesicles was performed. The results suggest that muscular contraction in the seminal vesicle is predominantly under the influence of the sympathetic nervous system, whereas secretory epithelial function is regulated by both sympa thetic and parasympathetic fibe
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