Which of the following contraception approaches is not matched to their correct action?

Barrier Methods - Prevent fertilization

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Intra uterine devices - Increase phagocytosis of sperms, suppress sperm motility and fertilizing capacity of sperms

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Hormonal contraceptives - Prevent/retard entry of sperms, prevent ovulation and fertilization

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Vascetomy - Prevents spermatogenesis

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Solution

The correct option is D Vascetomy - Prevents spermatogenesis
Contraception does not mean prevention of spermatogenesis or oogenesis. The gametes will be produced by the sex organs. But other aspects like a release of the ovum, entry of sperms into the vagina, travelling of sperm through fallopian tube or implantation of the zygote, etc. are prevented in order to avoid pregnancy. Vasectomy does not prevent spermatogenesis, but just prevents the entry of sperm into semen.

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Q. Name the methods which can prevent contraception in the following ways:
a) Prevent implantation
b) Prevent fusion of gametes
c) Increase phagocytosis of sperms [3]

Q. Given below are four methods of contraception (A)-(D) and their modes of action (i)-(iv) in achieving contraception .Select their correct matching form the four options that follow.

\begin{matrix} M e t h o d & M o d e o f a c t i o n A . T h e p i l l & (i) P r e v e n t s s p e r m s r e a c h i n g c e r v i x B . C o n d o m & (i i) P r e v e n t s i m p l a n t a t i o n C . V a s e c t o m y & (i i i) P r e v e n t s o v u l a t i o n D . C o p p e r - T & (i v) S e m e n c o n t a i n s n o s p e r m s \end{matrix}

Q. CuTis an effective method of contraception which is achieved by
(A) thinning the uterine endometrium
(B) preventing ovulation
(C) preventing the entry of sperms into cervix
(D) none of these

Q. Given below are four methods (A-D) and their modes of action (1-4) in achieving contraception. Select their correct matching from the four options that follow:

\begin{matrix} M e t h o d & M o d e o f A c t i o n (1) & T h e p i l l & P r e v e n t s s p e r m s r e a c h i n g c e r v i x (2) & C o n d o m & P r e v e n t s i m p l a n t a t i o n (3) & V a s e c t o m y & P r e v e n t s o v u l a t i o n (4) & C o p p e r - T & S e m e n c o n t a i n s n o s p e r m s \end{matrix}

Given below are four methods (A-D) and their modes of action (i) - (iv) in achieving contraception. Select their correct matching from the four options which follow.

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