Home
Class 12
BIOLOGY
IUDs prevent pregnancy by...

IUDs prevent pregnancy by

A

inhibiting physiological and morphological uterine changes required for implantation

B

increasing phagocytosis of spermatozoa within uterus

C

suppressing motility of sperms as well as their fertilising capacity

D

all of these

Text Solution

Verified by Experts

The correct Answer is:
D
Copper releasing IUDs (CuT, multiload 375) increase phagocytosis of sperms within the uterus and the Cu ions released suppress sperm motility and the fertilising capacity of sperms. The hormone releasing IUDs (progestasert, LNG-20), make the uterus unsuitable for implantation and the cervix hostile to the sperms. IUDs are inserted bu trained doctors and they are ideal contraceptives for the females.
Promotional Banner

Similar Questions

Explore conceptually related problems

Assertion (A): In India, IUDS most widely accepted methods of contraception. Reason (R): IUDS are injectable contraceptives, which prevent pregnancy for three months.

Surgical sterilisation method can prevent pregnancy permanently

Read the given statements and select the correct option Statement 1 : Use of condom is a safeguard against AIDS and sexual diseases besides checking pregnancy Statement 2 : Certain contraceptives are implanted under the skin of the upper arm to prevent pregnancy.

Read the following statements and select the option having both incorrect statements (i) Condoms decrease sperm motility (ii) Diaphragms, cervical caps and vaults are for both males and females (iii) IUDs are inserted by expert nurses (iv) Sterilisation is a terminal method to prevent further pregnancy.

Menstrual cycle ceases during pregnancy .

An hormone supporting pregnancy is got from _______

Menstrual cycle ceases during pregnancy. (True/False)

Urine test during pregnancy determines the presence of

First trimester of pregnancy is critical. Give reason.