- Question Answer
- Suggest three contraceptive methods to control the size of human population which is essential for the health and prosperity of a country
. Suggest three contraceptive methods to control the size of human population which is essential for the health and prosperity of a country
State the basic principle involved in each
Ans. There are three different methods of contraception:
i. Barrier methods. In these methods, physical devices .such as condoms, diaphragms and cervical caps are used. These devices prevent the entry of sperm in the female genital tract, thus acting as a barrier between them
ii. Surgical methods. There are surgeries that can be carried out in males and females. In males, a small portion of the sperm duct (vas deferens) is blocked by a surgical operation. This prevents the sperms from coming out.
In females, a small portion of the fallopian tubes (oviducts) is blocked by a surgical operation: It prevents the egg from reaching the uterus. In both the cases, fertilization will not take place
iii. Chemical methods. This category of contraceptives acts by changing the hormonal balance of the body so that eggs are not released and fertilisation cannot occur. Females use two types of pills for preventing pregnancies, i.e., oral pills and vaginal into the fallopian tube. This is also called oral contraceptives (OC). Other contraceptive devices such as loop or the copper-Tare placed in the uterus to prevent pregnancy.