Exam 3: Conception and Prenatal Development

Sandra is a singer and wants to sing to her baby. When is the earliest into her pregnancy that she could start singing to her baby and reasonably expect that the baby will be able to hear her?

Maggie brought her orphaned niece into her home and is raising her as her own daughter after her biological parents died in a car accident. Which of the following does this scenario best exemplify?

HIV can be found in breast milk.

Sperm are much larger than ova.

__________can be used to achieve pregnancy when the fallopian tubes are blocked because the ova need not travel through them.

Cigarette smoke is known to contain _____ that stimulates the fetus.

A blastocyst gains mass only when it receives nourishment from outside.

Phoebe's son was born with thin lips and widely spaced eyes. His physician also diagnosed him with brain dysfunction. His facial deformities decreased as he grew older, but his brain dysfunction persisted even in adulthood. In this scenario, Phoebe's son is most likely suffering from _____.

Which of the following is true of a sperm cell?

By 12-20 weeks of pregnancy, a fetus moves its limbs so vigorously that the pregnant mother may complain of being kicked.

_____, an estrogen prescribed during the 1940s and 1950s to help prevent miscarriage, has been linked to cancer in some offspring.

Which of the following is true of the babies of women who regularly used marijuana during pregnancy?

Thalidomide was marketed in the 1960s as a treatment for:

Which of the following is true of teenage mothers?

Laura is 45 years old, and her husband Shane is 48 years old. They already have a child and want to have another child. Their physician states that their chances of conceiving a child are extremely low. Which of the following is the most likely reason for this reduced ability to bear children?

Discuss the effects of teratogens on an embryo or fetus.

Pregnant women consuming high doses of vitamins A and D have been associated with:

Thalidomide, when consumed by pregnant women during the second month of pregnancy can cause:

The _____ is the inner layer of the embryo from which the lungs and digestive system develop.

Sperm that survive the initial obstacles in the cervix _____ after ejaculation.