PNR 308 Prenatal Questions and Correct
Answers/ Latest Update / Already Graded
What is the average duration of a term pregnancy?
Ans: 40 weeks
How is a term pregnancy divided?
Ans: Into three 13-week parts called trimesters
What is fertilization?
Ans: The union of an egg and sperm to form a zygote
Where does fertilization typically occur?
Ans: In the outer third of the fallopian tube, near the ovary
What is the zygote?
Ans: The cell formed by the union of egg and sperm
Where does the zygote usually implant?
Ans: In the upper section of the posterior uterine wall
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What occurs during cell differentiation?
Ans: Cells begin to develop special functions after implantation
What structures develop from the zygote?
Ans: The chorion, amnion, yolk sac, and primary germ layers
What is the function of the amnion?
Ans: To surround and protect the embryo
What does the chorion form with the amnion?
Ans: The amniotic sac filled with fluid
What is the volume of amniotic fluid at 10 weeks?
Ans: 30 mls
What is the volume of amniotic fluid at 20 weeks?
Ans: 350 mls
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How much amniotic fluid is present at 37 weeks?
Ans: About 1000 ml
What are the functions of amniotic fluid?
Ans: Maintains temperature, prevents adhesion, allows
growth, provides buoyancy, and cushions the fetus
What is the umbilical cord's role?
Ans: It serves as the lifeline between the mother and fetus
What do the two arteries in the umbilical cord do?
Ans: Carry blood away from the fetus
What is amniotic band syndrome?
Ans: A condition that can occur when the amniotic sac adheres
to fetal skin
What are the presumptive signs of pregnancy?
Ans: Signs that suggest pregnancy but are not definitive
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