Question

Vaults are a type of contraceptive devices.

Choose the correct option from the statements given below.
Statement I: They are used exclusively by females.
Statement II: They are introduced deep into the uterus.
Statement III: They act as spermicidal agents.
Statement IV: They physically prevent sperms from reaching oocytes.

• A. II, III and IV only
  
• B. I and II only
  
• C. I, II, III and IV
  
• D. I and IV only

Answer 1

The correct option is D I and IV only

Three barrier methods exclusively used by females are (i) diaphragms, (ii) Cervical caps and (iii) vaults. The main principle behind using the barrier method is to physically prevent the sperms from meeting the oocytes. These are all cup-shaped rubber caps that block/cover the entrance of the uterus, which eventually blocks the entrance of the sperms, hence conception is prevented.
During coitus, these barriers are used at the entrance of the uterus to cover the cervix, not into the uterus.
Spermicidal agents contain spermicides that kill the sperms. These come in different forms like foams, jellies foams, etc. Spermicides are used along with barriers to increase the contraceptive efficiency of the barrier.