Answer: Suppressing sperm motility and increasing phagocytosis of sperm.
- A Destroying oocytes within the ovarian follicle before ovulation occurs
- B Suppressing sperm motility and increasing phagocytosis of sperm
- C Stimulating excessive endometrial thickening to block the cervical canal
- D Releasing synthetic progestin hormones that suppress the LH surge
Correct answer: B. Suppressing sperm motility and increasing phagocytosis of sperm
Explanation: Copper IUDs like CuT release copper ions that suppress sperm motility and increase phagocytosis of sperm, making the uterine environment hostile to fertilisation.
Contraceptive methods span a spectrum from temporary/natural to permanent/surgical; condoms stand out as the only method offering STI protection alongside contraception.
Concept context
Understand reproductive health, family planning, contraception methods, STIs, population control, and assisted reproductive technologies.