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How do hormonal contraceptives prevent pregnancy?
By blocking the fallopian tubes
By increasing sperm production
By changing the hormonal balance to prevent egg release
By creating a physical barrier
By changing the hormonal balance to prevent egg release
Hormonal contraceptives contain synthetic hormones (estrogen and progestin) that work primarily by inhibiting the release of an egg from the ovaries (ovulation). They also thicken cervical mucus, which makes it difficult for sperm to enter the uterus, and thin the uterine lining to prevent implantation.
Hormonal contraceptives contain synthetic hormones (estrogen and progestin) that work primarily by inhibiting the release of an egg from the ovaries (ovulation). They also thicken cervical mucus, which makes it difficult for sperm to enter the uterus, and thin the uterine lining to prevent implantation.
Reproductive health education and contraceptive awareness are mandated under Article 47 of the Indian Constitution, which directs the State to improve public health, and are supported by the National Health Mission (NHM) under the Ministry of Health and Family Welfare.
Combined Oral Contraceptive Pills (COCPs) use synthetic estrogen and progestin.
These hormones mimic the natural cycle to trick the pituitary gland, stopping the LH (Luteinizing Hormone) surge required for ovulation.
Contraceptives do not block the physical fallopian tubes; they act chemically on the endocrine system.
Progestin-only pills (mini-pills) primarily thicken cervical mucus.
Option A (blocking fallopian tubes) describes a surgical procedure called tubal ligation, which is a permanent sterilization method, not a hormonal one.
Option D (physical barrier) refers to barrier methods like condoms or diaphragms, which prevent sperm-egg contact without hormonal alteration.
C is correct тАФ Hormonal contraceptives function by regulating the menstrual cycle to inhibit the release of an egg (ovulation) and altering the environment to prevent conception.
In Biology, remember that Hormones function as chemical messengers (Endocrine system). This topic is frequently linked to questions about Reproductive Health (Chapter: Human Reproduction) and the National Family Planning Program.
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