Word: fallopian
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...original camel pebble simply discouraged mating. Today's I.U.D.s are effective (up to 98%) for different reasons. Inserted into the uterus, they cause a minor inflammation of the uterine lining that prevents the fertilized egg from implanting in the uterine wall after its journey through the fallopian tube. Certain types of I.U.D.s also function by releasing copper or the hormone progesterone...
...gynecological team, as part of the fertility program at Eastern Virginia Medical School. They will use a variation of the technique developed by British Scientists Patrick Steptoe and Robert Edwards. An egg will be removed, through a small incision in the abdomen, from the ovary of a woman whose fallopian tubes are either hopelessly blocked or too damaged to permit natural fertilization. Then it will be placed in a laboratory dish with the husband's sperm. (Unmarried women are not eligible.) About two days later, the fertilized egg will be inserted into the wife's womb...
...more serious objection: if a woman thinks that she is not pregnant when, in fact, she is, she may delay going to a physician. Such procrastination can be particularly dangerous in tubal pregnancies, which require early medical attention because the fallopian tube can rupture and possibly cause death...
Steptoe revealed that the birth had been filmed; the pictures may prove an important point. Some doctors had observed that if Lesley's fallopian tubes were intact, Steptoe would not have irrefutable proof that Louise was conceived in a test tube. But, Steptoe said with evident satisfaction, "I was able to show that the tubes were absent." Lesley, he explained, had had an operation in 1970 to clear her blocked tubes?but with no success. After she was referred to Steptoe in 1976, he did an exploratory operation and found "there were mere remnants of her tubes." Because these remnants...
...intricate and marvelous. Stimulated by hormones, part of the body's chemical signaling system, a ripe egg is expelled from its grapelike encasement, or follicle, in the ovary; in any month, either of the female's two ovaries may contribute an ovum. Then the egg enters the nearby fallopian tube. If coitus has taken place, the egg will shortly run into a swarm of tailed sperm that have managed, like salmon battling upstream, to fight their way into this passageway. In a dramatic headlong plunge, a single sperm will penetrate the waiting ovum's outer layer, its 23 chromosomes joining...