| Abstrakt: |
The study includes (10) females adult Guinea fowl (Numida meleagris), during sexual activity collected from Baghdad markets, Iraq. The average weight of 1.5 kg. The present study was conducted to determine the anatomical parameters of infundibulum in guinea fowl (Numida meleagris), parameters of the infundibulum wall layers (mucosa, lamina propriasubmucosa, and tunica muscularis) and histochemical study of infundibulum, which includes types of mucin. All birdes (Guinea fowl) were slaughtering then abdominal dissection has conducted to expose the viscera which was subsequently removed to view the reproductive organs. Specimens of infundibulum selected from each bird (Guinea fowl) have washed with normal saline. Anatomically the infundibulum consisted of two parts: The first cranially wide part had thin-walled called “funnel”. The second caudally narrow tubular part is called the “neck”. The mucosa of the funnel was very thin translucent showed not remarkable folds. The neck was narrows and its mucosa showed overcrowded mucosal folds. Histologically funnel part of infundibulum had a thin wall. The tunica mucosa of the funnel part has thrown into slightly tall branched mucosal folds, these mucosal folds and their epithelial crypts lined by ciliated simple columnar epithelium. The cranial end of the funnel part has thrown into fingerlike projection called “fimbriae”, which have tapered and lined by ciliated simple columnar epithelium. Tunica muscularis of the funnel was composed of inner circular and outer longitudinal smooth muscle, the neck part of infundibulum possessed slightly thick wall and narrow lumen. Its tunica mucosa showed numerous tall mucosal folds which were branched into primary, secondary, and tertiary types. the mucosal folds were lined by simple columnar epithelium and patches of pseudostratified columnar epithelium and showed epithelial modification that represented by the formation of the sperm storage tubules (SST), the epithelium was rested on lamina propria that composed of fibrous connective tissue composed of collagen fibers. The tunica muscularis had made up of only a circular layer of smooth muscle fibers. In guinea fowl, the epithelial cells of the funnel region were negative for both PAS and Alcian blue stains. Histochemical results epithelial cells of the neck part of the infundibulum showed a positive reaction for both PAS and Alcian blue stains. [ABSTRACT FROM AUTHOR] |
