Reproductive Health Problems And Strategies

Intrauterine devices (IUDs) are small contraceptive devices inserted into the uterus to prevent pregnancy. One of their mechanisms of action is to promote the phagocytosis (destruction) of sperms by white blood cells (WBCs), thus preventing fertilization. - Option (1) is incorrect: IUDs are typically inserted by a trained healthcare professional, not by the user herself.
- Option (3) is incorrect: IUDs do not suppress gametogenesis; they work primarily within the uterus to prevent fertilization or implantation.
- Option (4) is incorrect: IUDs are widely used and suitable contraceptives for females. Hence, the correct answer is option (2).

The correct flow of milk in the mammary gland begins from the site of secretion and ends at the point of ejection:
- Alveoli (c): These are the milk-secreting structures in the mammary gland.
- Mammary tubule (a): Milk secreted in alveoli is drained into mammary tubules.
- Mammary duct (d): These tubules join to form mammary ducts.
- Mammary ampulla (b): The ducts widen to form the ampulla, a storage region.
- Lactiferous duct (e): Finally, milk is transported through the lactiferous duct to the exterior.
Thus, the correct sequence is: c → a → d → b → e

Step 1: Types of IUDs (Intrauterine Devices)
IUDs can be classified into non-hormonal (e.g., Copper-T, Multiload 375) and hormonal (e.g., LNG-20). Step 2: Identify hormone releasing device.
LNG-20 releases levonorgestrel, a hormone that prevents pregnancy by thickening cervical mucus and inhibiting ovulation. Conclusion: The hormone releasing IUD is LNG - 20 (Option 4).