Freemartin Reproductive Tract.
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. Note that, while the presence of the bilateral rudimentary seminal vesicular glands is a constant feature, the vestiges of the uterus vary considerable, from minuscule to fully identifiable by transrectal palpation. Ovaries are generally mere thickenings.
Roberts SJ (1986)