After a chlamydia infection, Mrs. Jones developed scar tissue in her uterine tubes. Determine why she is at a higher risk for an ectopic (tubal) pregnancy in her uterine tubes
What will be an ideal response?
During the process of ovulation, when an oocyte is expelled from the ovary, the fimbriae sweep the ovarian surface and "catch" the oocyte. The oocyte is then carried into the uterine tube. A combination of muscular peristalsis and the beating of the cilia moves the oocyte toward the uterus.
Fertilization, which begins when a sperm cell binds to and penetrates the plasma membrane of an oocyte, occurs in the uterine tubes, usually in the ampulla. Implantation should occur in the uterus, but in Mrs. Jones' situation, the fertilized ovum will have more difficulty making its way from the uterine tube to the uterus due to the scar tissue and inflammation of the uterine tubes. Thus, the fertilized ovum has a higher chance of implanting in the uterine tube causing an ectopic (tubal) pregnancy.
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A) is when the damaged cells are able to recover and return to normal function. B) is when the damaged cells are beyond recovery and so the body replaces them with new healthy cells of the same type that function normally. C) is when the cells or tissue is damaged and is replaced with scar tissue, rather than healthy cells. This scar tissue is nonfunctional. D) is when all the cells die.