ABCP Board review QUESTIONS WITH
CORRECT ANSWER S
Question : What good substances cross the placental
membrane?
CORRECT ANSWER : O2, CO2, H2O, bilirubin, maternal
serum proteins, RBc, IgG, IgA
Question : What harmful substances cross the placental
membrane?CORRECT ANSWER : 1) viruses: rubella, HIV, measles, oral conraception, WARFARIN, DILANTIN, Xanax, cocaine, heroin, RH-antibodies
Question : What does not cross the placental membrane?
CORRECT ANSWER : maternal chplesterol, Insulin,
Succinylcholine, HEPARIN, bacteria
Question : Which vessel supplies blood to the fetus?
CORRECT ANSWER : umbilical vein
Question : Which vessels return blood from the fetus?
CORRECT ANSWER : umbilical arteries
Question : The development of the IV septum begins when?
CORRECT ANSWE R: 27th day of gestation
Question : the blood begins to circulate in the cardiac system
by when?
CORRECT ANSWER : by end of 3rd week
Question : The division of the truncus arteriosus occurs
when?
CORRECT ANSWER : 28th day of gestation
Question : Growthof the atrial septum primum (heart folding)
occurs when?
CORRECT ANSWER : 4th week
Question : The aortic formation occurs when?
CORRECT ANSWER : 6-9th week
Question : The pulmonary formation occurs when?
CORRECT ANSWER : 8-12th week
Question : Growth of the septum secundum occurs when?
CORRECT ANSWER : 6th week (when PFO can occur)
Question : What is considered the embryonic period?
CORRECT ANSWER : first 2 months (1st 8 wks)
Question : What is considered the fetal period?
CORRECT ANSWER: months of development after the 2nd
week
Question : How many cells are present around the morula by
the end of the 3rd day of cleavage?
CORRECT ANSWER : 16
Question : ***During the later stages of pregnancy, maternal
blood is separated from frtal blood by? a)syncytiotrophoblast only b) cytotrophoblast only c) syncytioytophoblast and cytotrophoblast d) syncytiotrophoblast and fetal endothelium
- cytotrophoblast and fetal endothelium
CORRECT ANSWER : syncytiotrophoblast and fetal
endothelium
Question : The maternal and fetal components of the placenta
are? a) decidua basalis and secondary chorionic villi b) decidua capsularis and secondary chorionic villi c) decidua parietalis and tertiary chorionic villi d) decidua capsularis and villous chorion e) decidua basalis and villous chorion
CORRECT ANSWER : decidua basalis and villous chorion
Question : ***The intervillous space of the placenta contains?
- maternal blood b) fetal blood c) maternal and fetal blood d)
amniotic fluid e) maternal blood and amniotic fluid