Oral contraceptives primarily prevent conception by
A)reducing the number of sperm that penetrate the cervix.
B)blocking sperm from reaching the ovum.
C)changing the acidity of the vaginal canal.
D)preventing ovulation by mimicking the hormonal activity of the corpus luteum.

Question

Quizplus · Accepted Answer

Oral contraceptives work by preventing ovulation, which occurs when the hormonal activity of the corpus luteum triggers the release of an ovum from the ovary. Oral contraceptives contain synthetic hormones that mimic the activity of the corpus luteum, tricking the body into thinking that ovulation has already occurred. Without ovulation, there is no egg for sperm to fertilize, and pregnancy cannot occur.

Oral Contraceptives Primarily Prevent Conception by