Fallopian tube

A pair of fallopian tubes are found in a female mammal and down either of these tubes eggs will travel from the ovary to the uterus. They are also lined with cilia which cause the eggs to move as they are not motile. Infection of a fallopian tube can cause scar tissue to form and block the tube, partially or fully preventing any movement through them .

References:

https://www.medicinenet.com/script/main/art.asp?articlekey=3375