Quiz Chapter 29

Quiz Chapter  29

1.       What is an important enzyme involved in the penetration of the oocyte during fertilization?

2.       What process of chemical interplay among developing cells prompts the differentiation of other embryonic cells?

3.       What is the developmental fate of the inner cell mass of the blastocyst?

4.       Improper development of which of the extraembryonic membranes affects the cardiovascular system?

5.       Which of the three embryonic germ layers consists of cells that do NOT migrate to the interior of the inner cell mass?

6.       Which body system develops from all three embryonic germ layers?

7.       What is (are) the important function(s) of the placenta?

8.       Why does a mother’s blood volume increase during pregnancy?

9.       What are the important roles of hCG in maintaining pregnancy?

10.   Why is it more detrimental for a pregnant woman to be exposed to teratogens, alcohol, or drugs during the first trimester than later in pregnancy?

11.   Where is oxytocin produced in the brain?

12.   Which factor opposing progesterone is the trigger for the onset of “true labor”?

13.   When the lungs expand as neonate takes his or her first breath, what important change(s) occur(s) in the cardiovascular system?

14.   If a fetus is delivered at 26 weeks and weighs 550 g, what type of delivery has occurred and what are the chances of survival?

15.   Why are children not identical copies of their parents?