A PITO tube is used to measure airspeed of the plane. The covers are put over the tubes when the aircraft is going to be on the ground for an extended period of time, and are removed before takeoff....
fallopian tubes or oviducts.
rough endoplasmic reticulum
Uterus.. LOOK AT A DIAGRAM! break the cycle of ignorance
Several. The Seminiferous Tubule, the Rete Testis and the Ductus Vas Deferens, among blood vessels, etc.