Exam 28: Embryology and Human Development

During the ________ stage of labor, the muscle tension builds in the walls of the partially empty uterus, and the organ gradually decreases in size.

Figure 28.5 Using the figure above, identify the labeled part. -Label N: ______________________________

Blood flows to the placenta from the fetus through the ________ arteries.

Figure 28.5 Using the figure above, identify the labeled part. -Label M: ______________________________

Surgical incision of the abdominal wall to remove the fetus is called a(n)________.

After oocyte activation and completion of meiosis, the female chromosomes reorganize as the

The first of the extraembryonic membranes to appear, which ultimately becomes involved in blood cell formation, is (the)

The first trimester is a critical period for development because events in the first 12 weeks establish the basis for organ formation, a process called ________.

________ considers developmental events that occur in the first two months after fertilization. (Note: Be sure to capitalize the first letter of your answer).

The first recognizable feature of the cardiovascular system is (the)

Figure 28.5 Using the figure above, identify the labeled part. -Label F: ______________________________

Which time period is the most dangerous in prenatal life

Figure 28.5 Using the figure above, identify the labeled part. -Label R: ______________________________

The last systems to complete prenatal development are (the)

Figure 28.3 Using the figure above, identify the labeled part. -Label R: ______________________________

Figure 28.1 Using the figure above, identify the labeled part. -Label M: ______________________________

Figure 28.5 Using the figure above, identify the labeled part. -Label S: ______________________________

Each germ layer develops into specific structures. The nervous system develops from the ________.

Figure 28.4 Using the figure above, identify the labeled part. -Label I: ______________________________

The two systems with related functions that will change the most rapidly at birth, but that are still undergoing some differentiation shortly before birth, are the circulatory and ________ systems.