 Identify the contraceptive device shown above and state its primary mode of action:
ACopper-T (CuT) — releases Cu²⁺ ions that suppress sperm motility and fertilising capacity
BCervical vault — physically traps sperms
CDiaphragm — covers the cervix to block sperm entry
DLNG-20 — releases progestogen to thicken cervical mucus
Answer & Solution
Correct answer: A. Copper-T (CuT) — releases Cu²⁺ ions that suppress sperm motility and fertilising capacity
The figure depicts **Copper-T (CuT)**, a copper-releasing IUD. Cu²⁺ ions released into the uterus **suppress sperm motility and reduce their fertilising capacity**, and the device also increases phagocytosis of sperms within the uterus.
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