: A rudimentary hymen separates the vestibule from the vagina. The internal environment is protected by a series of three "seals": the vulvar lips, the vestibulovaginal seal, and the cervix. Clinical Significance and Maintenance
: It consists of two vertical lips ( labia ) that meet at a pointed dorsal commissure (top) and a rounded ventral commissure (bottom). female horse vagina
Ideally, the vulva should be vertical. If it tilts forward (common in older mares or those with poor body condition), it can lead to "wind-sucking" (pneumovagina), where air and bacteria are drawn into the reproductive tract, potentially causing infections. : A rudimentary hymen separates the vestibule from