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Rudiments of fungiform papillae were observed at day 18 of prenatal development. They were arranged only on the dorsal surface of the apex of the tongue and its margins. The fungiform papillae looked like a hemispherical, dome-shaped eminences. From day 22 of prenatal development, scanning electron microscope showed also that rudiments of fungiform papillae appeared on the body of the tongue at the...
Based on standard histological methods and specific injection technique, the study demonstrates for the first time the blood vessel system of the scrotal integument. The latter is relatively thin and shows a thick underlying fascia, the tunica dartos. The vessel networks found in both structures are somewhat different from each other, i.e., the former displays the typical integumental vessel scheme,...
The first signs of formation of the posterior serous lingual glands (von Ebner's glands) were observed at day 22 of prenatal development of the rabbit. The development of glands was initiated by the appearance of epithelial bands, growing into the connective tissue. At day 26 p.c. the epithelial bands were longer. At day 1 of postnatal life the secretory parts of glands were formed together with...
A total of 129 tongues were analyzed, which were collected post mortem from rabbits (Oryctolagus cuniculus f. domestica), aged from day 15 of prenatal development (p.c.) to the 6th month of postnatal life (p.p.). The tongue was formed on the basis of its primordia starting as early as day 15 p.c. At that time the first primordia of lingual papillae were observed, which were primordia of circumvallate...
Occurrence of sex-reversal (38,XX; SRY-negative) cases in the progeny of a single boar was observed. Altogether 11 intersexes, originating from nine litters, given by nine sows were found. The breeder classified the sex-reversal individuals as females with enlarged clitoris. In addition, it was noticed that the anus was joined with the vulva. Moreover, in the scrotum-like structure one or two gonads...
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