There Is a Three-Day Window During Which a Woman Is

question 21

Multiple Choice

There is a three-day window during which a woman is most likely to become pregnant. It extends from two days before ovulation to one day after and occurs because

• A) sperm are viable for up to three days in the female reproductive tract.
• B) a secondary oocyte is viable for about 24 hours after ovulation and sperm are viable for about 48 hours in the female reproductive tract.
• C) it takes three days for the sperm to reach the secondary oocyte.
• D) it takes three days for the secondary oocyte to reach the uterus.

---

Definitions:

Impermeable Barrier

A material or structure that does not allow fluids or gases to pass through it.

Epithelial

Refers to the type of tissue that lines the cavities and surfaces of blood vessels and organs throughout the body.

Muscular

Relating to or affecting the muscles in the body.

Connective

Describes tissue that supports, binds together, or separates other tissues or organs of the body.