Matching Contraceptive Methods and Their Functions

The question asks us to match different contraceptive methods listed in List-I with their descriptions or examples given in List-II. Let's analyze each pair based on the correct matching provided.

Analyzing the Correct Matching Pairs

• (A) Barrier Methods and (I) Prevents physical contact between ovum and sperm: Barrier methods, such as condoms, diaphragms, cervical caps, and vaults, work by physically blocking the entry of sperm into the female reproductive tract. This directly prevents the sperm from meeting and fertilizing the ovum (egg), thus preventing conception. This matching is accurate as barrier methods create a physical barrier.
• (B) IUD (Intrauterine Device) and (IV) Increase phagocytosis of sperms and suppress sperm motility: Intrauterine Devices (IUDs) are small devices inserted into the uterus. Hormonal IUDs release hormones, while copper IUDs release copper ions. Copper ions are known to suppress sperm motility (their ability to move) and the fertilizing capacity of sperm. They also increase the phagocytosis of sperm within the uterus, meaning immune cells engulf and destroy the sperm. This matching correctly describes the primary mechanism of action of copper IUDs and contributes to the effect of hormonal IUDs as well.
• (C) Surgical Methods and (II) Sterilization: Surgical contraceptive methods are permanent methods also known as sterilization. In males, it is vasectomy, where the vas deferens is cut and tied to prevent sperm from entering the ejaculate. In females, it is tubectomy, where the fallopian tubes are cut and tied to prevent the ovum from reaching the uterus and sperm from reaching the ovum. Both procedures result in effective sterilization, preventing future pregnancies. This matching is correct.
• (D) Oral Contraceptives and (III) Saheli: Oral contraceptives are birth control pills. Saheli is a non-steroidal oral contraceptive developed in India. It is taken weekly and is a well-known example of an oral contraceptive pill, particularly significant for its non-steroidal nature. Therefore, matching Oral Contraceptives with Saheli is correct.

Based on this analysis, the correct matching is:

Revision Table: Contraception Methods Summary

Additional Information on Contraceptive Methods

Understanding the different types of contraceptive methods is crucial for family planning and reproductive health. Here's a bit more detail:

• Barrier Methods: These are simple and often readily available. Male condoms also offer protection against sexually transmitted infections (STIs). Female barrier methods like diaphragms and cervical caps often require fitting by a healthcare provider and must be used with spermicide.
• IUDs: These are long-acting reversible contraceptives (LARCs). Once inserted, they can prevent pregnancy for several years (3 to 10 years depending on the type). They are highly effective.
• Surgical Methods: Vasectomy and tubectomy are highly effective and intended to be permanent. Reversal procedures exist but are complex and not always successful. These methods do not protect against STIs.
• Oral Contraceptives: There are different types of oral contraceptives, including combined pills (estrogen and progestin) and progestin-only pills. They primarily work by inhibiting ovulation. Saheli is unique because it is a non-steroidal preparation containing centchroman, taken weekly after an initial loading phase. It works by selectively modulating estrogen receptors.

Choosing the right contraceptive method depends on various factors, including effectiveness, potential side effects, cost, availability, and individual health status and preferences.