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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.
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NCERT FINGERTIPS-REPRODUCTIVE HEALTH-Reproductive Health
  1. Which of the following is not an intrauterine device ?

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  2. What is the work of copper-T ?

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  3. IUDs prevent pregnancy by

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  4. CuT is an intrauterine contraceptive device. Select the option that co...

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  5. Read the given statements and select the correct option Statement 1 ...

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  6. Cu ions released from copper releasing intrauterine devices (IUDs)

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  7. Select the correct statement regarding IUDs out of the following

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  8. The birth control device used by women is

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  9. Main disadvantages of intrauterine contraceptive devices is that

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  10. Which of the following are the drawbacks of the IUDs ? (i) Their spo...

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  11. The most important component of oral contraceptive pills is

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  12. Progestin-estradiol combined contraceptive pills inhibit ovulation by

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  13. Progesterone pill helps in preventing pregnancy by allowing

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  14. How do the pills work ? (i) Inhibit ovulation and implantation (ii...

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  15. Read the given statement and select the correct option Statement 1 ...

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  16. What is true about ''Saheli'' ? (i) Developed at the CDRI, Lucknow ...

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  17. Identify the figures of the contraceptives given below and select the ...

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  18. Which of the following contraceptives are implanted under the skin ?

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  19. Select the correct statement regarding subcutaneous implantation of sy...

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  20. Read of following statements and select the correct option Statement...

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