Ova in rabbits move from the fallopian tube to the uterus through oviductal fluids. Researchers used a contrast medium to track this movement. The fluid in the ampulla region moved at a speed of 0 − 85.4 mm/s, slowing down to 0 − 9.6 mm/s in the isthmic portion. This shows that ciliary action plays a bigger role in moving materials in the isthmic part of the oviduct than peristaltic activity.