Which of the following contraception approaches is not matched to their correct action?

Explanation

The correct answer is: B. Vasectomy - Prevents spermatogenesis Now, let's explain each option and why the correct answer is B: A. Hormonal contraceptives prevent/retard entry of sperm, prevent ovulation, and fertilization: This statement is partially correct. Hormonal contraceptives, such as birth control pills, patches, and hormonal IUDs, primarily work by preventing ovulation. They also have some secondary effects that thicken cervical mucus, which can inhibit the entry of sperm into the uterus, and they alter the uterine lining to make it less receptive to implantation. However, they do not directly prevent fertilization. B. Vasectomy prevents spermatogenesis: This statement is not entirely accurate. Vasectomy is a surgical procedure that involves cutting or sealing the vas deferens, the tubes that carry sperm from the testicles to the urethra. It prevents sperm from being ejaculated during ejaculation, but it does not directly prevent spermatogenesis, which is the formation of sperm in the testes. Spermatogenesis continues, but the sperm produced cannot exit the body. C. Barrier methods prevent fertilization: This statement is correct. Barrier methods, such as condoms and diaphragms, work by physically blocking or limiting the contact between sperm and the egg, thereby preventing fertilization. D. Intrauterine devices increase phagocytosis of sperms, suppress sperm motility, and fertilizing capacity of sperms: This statement is also accurate. Intrauterine devices (IUDs), particularly copper IUDs, increase the phagocytosis (destruction) of sperm by white blood cells in the uterus, suppress sperm motility, and reduce the fertilizing capacity of sperm due to the presence of copper ions and the inflammatory response they create in the uterine environment. Summary: Barrier methods, such as condoms and diaphragms, prevent fertilization by physically blocking or limiting the contact between sperm and the egg. This is the correct statement.