Explain the mode of action of contraceptive pills taken by human females. Mention the schedule to be followed for an effective outcome.

Question

Study the figures given below that depict the comparative age distribution of human populations in Sweden and Rwanda (International Data Base 2003) and answer the questions that follow:
\begin{figure[H] \centering \includegraphics[width=0.8\textwidth]{Screenshot 2025-01-17 115648.png} \caption{Population pyramids of Sweden and Rwanda showing age and gender distribution.} \label{fig:population_pyramids} \end{figure} (a) What can be inferred from the very broad base of Rwanda’s age pyramid? Support your answer with the data provided in the figure.}

Answer 1

- Mechanism of Action: 1. Contraceptive pills deliver synthetic estrogen and progesterone to suppress ovulation through the inhibition of FSH and LH release from the pituitary gland. 2. They increase cervical mucus viscosity, impeding sperm passage into the uterus. 3. They modify the uterine lining (endometrium) to prevent the implantation of a fertilized ovum.- Recommended Usage for Efficacy: - A daily regimen of pills is to be followed for 21 days, commencing on the 5th day of the menstrual cycle. This is to be succeeded by a 7-day interval characterized by withdrawal bleeding.

List - I		List – II
A.	Copper releasing IUD	i.	Vaults
B.	Non-medicated IUD	ii.	Multiload 375
C.	Contraceptive barrier	iii.	LNG-20
D.	Hormone releasing IUD	iv.	Lippes loop

Explain the mode of action of contraceptive pills taken by human females. Mention the schedule to be followed for an effective outcome.

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Solution and Explanation

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