Write short notes on any two of the following.
a) IVF, b) ICSI, c) IUDs

a. IVF-ET : In Vitro Fertilisation and Embryo Transfer.

• The fertilisation of sperms and ovum takes place outside the body.
• The early embryo is transferred into mother’s uterus for development.

b. ICSI :

• Intra cytoplasmic sperm injection.
• The sperms are directly injected into ovum in laboratory.
• The early embryo is transferred to mother’s uterus.

c. IUDs :

• Intra Uterine Devices.
• These reduce the motility, viability of sperms.
• These are :
  i) Non medicated IUD.
  ii) Copper releasing IUD.
  iii) Hormone releasing IUD.