How do barrier methods prevent pregnancy?

Question

BlackTom AI · Accepted Answer

When evaluating how barrier methods prevent pregnancy, it helps to go option by option and unpack why each statement is true or false.
Option 1: 'They prevent sperm from getting through the cervix to the uterus by blocking the path.' This description aligns with how barrier methods work (such as condoms, diaphragms, and cervical caps): they create a physical barrier that blocks sperm from entering the uterus, thereby reducing the chance of fertilization. This explanation is accurate and matches the intended purpose of barrier methods.
Option 2: 'Hormones are used to change the female' This statement describes hormonal methods (like birth control pills or injections), not barrier methods. Barrier methods rely on a physical barrier rather than altering hormonal pathways, so this option is incorrect.
Option 3: 'The male pulls out before sperm is ejaculated into the vagina.' This describes withdrawal (coitus interruptus), which is not a barrier method. It is a behavioral method with high failure rates and does not involve a barrier device to prevent sperm from reaching the egg. Therefore, this option is inaccurate in the context of barrier methods.
Option 4: 'None of these describes how barrier methods prevent pregnancy.' Since Option 1 correctly describes the mechanism of barrier methods, this option is false. It incorrectly dismisses the accurate description provided in Option 1.
In summary, the key idea is that barrier methods work by physically blocking sperm from reaching the uterus, which is precisely what Option 1 states, while the other options reference non-barrier approaches or are factually inconsistent with how barrier methods operate.

HLTED-1-41135-F25 Quiz Ch 8

How do barrier methods prevent pregnancy?

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