Cu ion released from copper-releasing intra Uterine Devices (IUDs)

Options

A. make uterus unsuitable for implanatation
B. increase phagocytosis of sperms
C. supposess sperm motility
D. prevent ovulation

Answer

C

Explanation

Intra uterine Device (IUD) is a smll device made up of copper, plastic or stainless steel. It is inserted by a doctor and exeerts nurses into the uterus through vagina and can be lefy these for long periods. This device needs to be replaced after 3-5 yrs when cu relese become scanty after calcium deposition. It supress the sperum mobility and fertilising capacity of sperms.