Vestigial reproductive tract of a freemartin heifer. Note the absence of the cervix, the presence of bilateral vesicular glands (mesonephric duct remnants), rudimentary uterine horns, and vestiges of the ovaries. While the presence of the bilateral rudimentary seminal vesicular glands is a constant feature, the vestiges of the uterus vary considerably, from miniscule to fully identifiable by transrectal palpation. Ovaries are generally mere thickenings.

Freemartin reproductive tract

Credit: Roberts SJ (1986)

Digital Credit: Maarten Drost

Publisher: None

Rights: Name must appear as a credit whenever the image is used -

Description: Vestigial reproductive tract of a freemartin heifer. Note the absence of the cervix, the presence of bilateral vesicular glands (mesonephric duct remnants), rudimentary uterine horns, and vestiges of the ovaries. While the presence of the bilateral rudimentary seminal vesicular glands is a constant feature, the vestiges of the uterus vary considerably, from miniscule to fully identifiable by transrectal palpation. Ovaries are generally mere thickenings.

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