Morphology of the male genital of Thrichomys laurentius “Thomas, 1904”

Abstract

The punaréis a small rodent of day and night habits, inhabiting mainly rocky areas. In this work the structures of the male genital apparatus of the punaré were studied macroscopically and microscopically. The animals were sacrificed following the bioethical recommendations, where the testicles and other genital structures were collected. The testicles had seminiferous tubules with cells of the spermatic line andSertoli cells.The epididymis presented its tubules composed of a pseudostratified epithelium with stereocylls, composed of basal and cylindrical cells.The deferents duct presented a pleated mucosa formed by a simple cylindrical epithelial tissue, where two layers of smooth muscle, a circular internal and a longitudinal external one are observed, being possible to be observed an adventitia composed of dense connective tissue not modeled. The prostate has a parenchyma can be divided into two regions, the first has its glandular alveoli supported by large amount of smooth muscle, and the second having their glandular alveoli also surrounded by muscle plain but in smaller quantities and this being supported by a dense connective tissue no modeled. The vesicular gland has a mucosa composed of a simple cubic epithelium being formed by tubules that can be straightor tortuous with secretion present inside the tubular lumen. We conclude that the male genital organs of the punaré are similar macroscopically to rodent organs in general, with some differences between rodent species microscopically