Emily and her husband are thrilled as they peer into Emily's uterus by means of an ultrasound. The physician reports that the pregnancy appears normal, and that their baby's fingers, toes, heart, and circulatory system are developing as expected. The couple learns that the baby is only ¾ of an inch long. Given this information, the current stage of prenatal development is the __________
A) embryonic period.
B) germinal period.
C) zygotic period.
D) fetal stage.

Question

Quizplus · Accepted Answer

At a size of only ¾ of an inch, the baby is likely in the embryonic period of prenatal development, which lasts from the end of the germinal period (around 2 weeks after conception) to the end of the eighth week of development. During this period, the major organs and systems of the body begin to develop.

Emily and Her Husband Are Thrilled as They Peer into Emily's