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Exam 28: Pregnancy and Human Development

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Question 31

True/False

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A blastocyst is a hollow ball of cells,while the morula is a solid ball of cells.

A) True
B) False

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Question 32

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Conceptus is a term used to describe the developing human offspring.

A) True
B) False

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Question 33

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Which hormone is NOT produced by the placenta?

At what point is meiosis II completed for the female gamete?

A zygote is usually formed within the uterus.

Of the three germ layers,the mesoderm forms the most body parts.

Which of the following is true in reference to what may pass through the placental barriers?

Figure 28.1 Using Figure 28.1, match the following: -Stomach.

Define Braxton Hicks contractions.

Match the following: -Forms the chorion.

Which of the following is NOT a primary germ layer?

Match the following: -Leads to the development of a morula and then a blastocyst.

A couple interested in conceiving has been carefully charting her menstrual cycles for many months.Relative to ovulation,what window of time does coitus need to occur in order to achieve fertilization?

A friend confides that she desires to have children but is having trouble conceiving.Which of the following is true regarding implantation?

Neural tissue develops from the ________.

The embryo is directly enclosed in and protected by the amnion.

Mrs.Phang,eight months pregnant with her first child,makes an appointment with her obstetrician to investigate the cause of vaginal bleeding.Because it is actually more "spotting" than frank bleeding,and painless,she is becoming worried.Ultrasound visualization of her abdomen shows that the placenta is formed across the internal os of the cervix,and she is ordered to her bed for the remainder of the pregnancy.What name is given to Mrs.Phang's condition? Why is it an extremely serious condition? Why was she ordered to have complete bed rest for the remainder of her pregnancy?

The placenta and its attached fetal membranes are collectively called the afterbirth.

A 28-year-old woman has been in the first stage of labor for several hours.Her uterine contractions are weak,and her labor is not progressing normally.Because the woman insists upon a vaginal delivery,the physician orders that pitocin (a synthetic oxytocin)be infused.What will be the effect of pitocin? What is the normal mechanism by which oxytocin acts to promote birth?

Which of the following refers to the transfer of sperm and harvested oocytes together into the woman's uterine tubes in the hopes that fertilization will take place there?