It is highly elastic to accommodate the stallion during mating and the foal during birth.

Beyond the cervix lies the , which consists of a uterine body and two uterine horns. This is where a fertilized embryo will implant and grow. The ovaries are located at the end of the reproductive tract and are responsible for releasing follicles (eggs) and producing the hormones that regulate the mare's cycle. Maintaining Reproductive Health

Regular veterinary check-ups, including ultrasounds and "speculum" exams of the vaginal vault, are standard practice for breeding mares. These exams ensure there are no signs of inflammation (vaginitis) or infection that could hinder fertility.

The reproductive cycle of a mare (a female horse) is unique and influenced by various factors, including daylight, nutrition, and age. Mares are seasonally polyestrous, meaning they are in heat (estrus) for a certain period during the breeding season, which typically starts in early spring and ends in early fall.

The acts as the gateway between the vagina and the uterus.

The mare's reproductive system is similar to that of other female mammals, with some unique characteristics. The vagina is a muscular, tubular structure that extends from the vulva to the cervix.