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Exam 4: Development

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Question 1

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The placenta has two distinct parts: the fetal portion formed by the _____ and the maternal portion formed by the _____.

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chorionic villi of the chorion...

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Question 2

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The most common site for ectopic pregnancies is the:

A) ovaries
B) abdominal cavity
C) deciduas
D) uterine tube

E) B) and D)
F) None of the above

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Question 3

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The space indicated by the letter B is called the _____.

The name for a fertilized ovum that contains one nucleus is a _____.

Prenatal development includes development of the (select all that apply) :

The _____ forms the outer covering of the blastocyst.

What is the correct order of the events of true labor?

______________ is the study of development from the fertilized egg through week eight.

The letter C is pointing to the layer called the _____.

Within the umbilical cord, _____ _________ carry deoxygenated fetal blood to the placenta.

The embryonic disc appears first as a bilayered structure of ectoderm and endoderm next to the amniotic cavity.

The morula enters the uterine cavity on day 4 or 5.

Beginning with the deposition of sperm into the female reproductive tract, describe the events leading up to and including fertilization.

Bone formation begins during the _____ month of embryonic development.

The normal site of fertilization is the:

The placenta allows which of the following to pass into fetal blood? 1) maternal blood cells 2) most microorganisms 3) many drugs 4) viruses that cause AIDS, German measles, and chickenpox 5) alcohol

On the diagram, 3 is pointing to

Which structure undergoes implantation into the uterine endometrium?

The three main parts of the blastocyst are the trophoblast, inner cell mass (embryoblast), and blastocyst cavity (blastocele).

The three stages of labor are the stage of _____, stage of _____, and the _____ stage.