"Norplant" is the new form of birth control and it

Options

A. Allows ovulation but does not allow fertilization
B. Makes the cervical mucus thin making sperm entry into the uterus difficult
C. Has progestin as the active ingredient
D. Is effective for a maximum of 1 year

Answer

**Step-by-Step Solution:**

1. **Understanding Norplant**: Norplant is a form of birth control known as a subcutaneous implant. It is designed to prevent pregnancy.

2. **Mechanism of Action**: Norplant works by releasing synthetic progesterone (also known as progestin) into the body. This hormone plays a crucial role in regulating the menstrual cycle and preventing ovulation.

3. **Effects on Ovulation**: One of the primary functions of Norplant is to block ovulation. This means that it prevents the ovaries from releasing eggs, which is essential for fertilization to occur.

4. **Cervical Mucus**: Norplant also affects the cervical mucus. It makes the mucus thicker, which makes it more difficult for sperm to enter the uterus. This is a secondary mechanism of action that further reduces the likelihood of pregnancy.

5. **Duration of Effectiveness**: Norplant is effective for a maximum of five years, not just one year. This long-term effectiveness is one of the advantages of this contraceptive method.

6. **Evaluating the Options**:
- Option A: "Allow ovulation but does not allow fertilization" - Incorrect, as Norplant blocks ovulation.
- Option B: "Makes cervical mucus thin making sperm entry into the uterus difficult" - Incorrect, as it actually thickens the mucus.
- Option C: "Has progestin as the active ingredient" - Correct, as it contains synthetic progesterone.
- Option D: "Effective for a maximum of one year" - Incorrect, as it is effective for five years.

7. **Conclusion**: The correct answer is Option C, which states that Norplant has progestin as the active ingredient.

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