NEET BIOLOGY

Detailed explanation-1: -These include condoms (both external and internal) as well as the diaphragm, cervical cap, sponge, and vaginal spermicides. Condoms are also known as “barrier” methods of birth control; they physically block or otherwise prevent sperm from entering the uterus and reaching the egg for fertilization.

Detailed explanation-2: -Barrier Methods of Birth Control: Spermicide, Condom, Sponge, Diaphragm, and Cervical Cap.

Detailed explanation-3: -How a condom works. Condoms are a “barrier” method of contraception. They are made of very thin latex (rubber), polyurethane or polyisoprene and are designed to prevent pregnancy by stopping sperm from meeting an egg.

Detailed explanation-4: -Barrier contraceptives prevent sperm from entering a woman’s uterus. They include the condom, diaphragm, cervical cap, and contraceptive sponge. Some condoms contain spermicides. Spermicides should be used with condoms and other barrier contraceptives that do not already contain them.