Birth Control Problem Set

Problem 2: NOT a barrier method of contraception


Which of the following is NOT a barrier method of contraception?
A. Condoms
B. Intrauterine devices (IUDs)
The intrauterine device (IUD) works by interfering with implantation of the embryo rather than preventing contact between sperm and ovum. There is no consensus on exactly how it works. It may immobilize sperm, interfere with migration of sperm, speed transport of the ovum, or alter the lining of the uterus.
C. Diaphragm

The Biology Project
University of Arizona
Tuesday, February 10, 1998
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