How High Planes Fly. Planes equipped with jet engines fly at greater altitudes than propeller-driven aircraft. These include commercial flights, cargo jets and even private passenger jets. The air traffic control tower usually assigns a cruising altitude of up to 39,000 feet, but long flights are typically assigned higher altitudes. By keeping these planes at assigned altitudes, air traffic control creates invisible stacked highways in the sky, keeping enough air space between the flights.
Blockage to or damage in the fallopian tube is one of the causes of infertility. Fallopian tubes play an important role in ovulation, as well as conception. Once the female egg is released from the ovary, one of the fallopian tubes (i.e. the fimbriae) picks up the egg and pushes it to pass through the tube.
Surprisingly, many women with blocked fallopian tubes never experience any noticeable symptoms. Since pain from the condition is rare, and not all women notice or experience infertility, it is not uncommon for women with blocked tubes to go several years without knowing about their conditions.It is possible that millions of women actually have blocked fallopian tubes that are undiagnosed.ince pain from the condition is rare, and not all women notice or experience infertility, it is not uncommon for women with blocked tubes to go several years without knowing about their conditions. It is possible that millions of women actually have blocked fallopian tubes that are undiagnosed.