Population Stabilisation And Birth Control

Oral contraceptive pills contain either progesterone only or a combination of progesterone and estrogen. These pills act in four ways:
(i) Inhibition of ovulation.
(ii) Inhibition of motility and secretory activity of oviducts (Fallopian tubes).
(iii) Changes in cervical mucus impairing its ability to allow passage and transport of sperms.
(iv) Alteration in uterine endometrium to make it unsuitable for implantation.

Male contraceptives work by interfering with sperm production or delivery, that means they inhibit the spermatogenesis as well as the function of male sex hormone testosterone. LH and FSH (both called gonadotropic hormone are secreted from anterior pituitary) have specific functions in the testis. FSH stimulates male germ cells for spermatogenesis and LH stimulates accessory cells, called leydig cells to produce sex steroids, especially testosterone. Thus, these two hormones (FSH and LH) prevent male contraception.

The correct option (A): LNG-20.

ions interfere with sperm movement. Thus copper releasing IUD?? function as effective contraceptive measure.