Vaginal process
The processus vaginalis ("vaginal skin extension") is an embryonic protrusion of the peritoneum and the inner trunk fascia ( Fascia spermatica interna ) through the inguinal canal . Male mammals , in which the testes migrate outward from the inside of the body ( testicular descent ), as well as female dogs, have a vaginal process . The posterior gonadal ligament ( gubernaculum testis , in bitches ligamentum teres uteri ) ends in the processus vaginalis .
The process of the vagina is one of the testicular sheaths inside the scrotum . The peritoneum part of this protuberance is called the vaginal skin ( tunica vaginalis ). It lines the inside of the scrotum as a so-called wall sheet ( lamina parietalis or periorchium ). The wall sheet then turns inside as a double lamella and covers the testicles as a visceral lamina ( lamina visceralis or epiorchium ). There is a very narrow space between the two leaves, the cavum vaginale , which ensures that the testicle can move in the scrotum. The connection point between the two leaves is the testicle- cochineal ( mesorchium ), which is used to fix the testicle in the scrotum. The cremaster muscle attaches to the process of the vagina, pulling the vaginal process and testicles closer towards the abdominal wall.
In bitches, the vaginal process is filled with fatty tissue and the lig. Teres uteri.
literature
- Uwe Gille: Male sexual organs. In: Franz-Viktor Salomon u. a. (Ed.): Anatomy for veterinary medicine . Enke-Verlag, Stuttgart 2004, ISBN 3-8304-1007-7 , pp. 389-403.