CuT is an intrauterine contraceptive device. Select the option that correctly defines the role of Cu

Options

A. Cu ions make uterus unsuitable for implantation
B. Cu ions suppress sperm motility and the fertilising capacity of the sperms
C. Cu ions make cervix hostile to sperms
D. all of these

Answer

**Step-by-Step Text Solution:**

1. **Understanding CuT**: CuT, or Copper T, is an intrauterine contraceptive device (IUD) that is inserted into the uterus to prevent pregnancy.

2. **Role of Copper**: The copper in CuT plays a significant role in its contraceptive function. When CuT is inserted into the uterus, it releases copper ions.

3. **Effect on Sperm**: The released copper ions have a specific effect on sperm. They decrease the motility (movement) of sperm, which is crucial for fertilization. Additionally, copper ions reduce the fertilizing capacity of the sperm, making it less likely for sperm to successfully fertilize an egg.

4. **Misconceptions**: It is important to clarify that while copper affects sperm, it does not directly make the uterus unsuitable for implantation. Instead, it primarily acts on the sperm.

5. **Correct Option**: Based on the effects of copper ions, the correct option that defines the role of Cu in CuT is: "Cu ions suppress sperm motility and the fertilizing capacity of sperm."